fix: add properties field to ModelCard xml and proto to resolve mismatch with json

Signed-off-by: wievdndr <wiebe.vandendriessche@ugent.be>

Author: wiebe-vandendriessche

schema/bom-1.5.proto

@@ -1009,6 +1009,8 @@ message ModelCard {
   optional QuantitativeAnalysis quantitativeAnalysis = 3;
   // What considerations should be taken into account regarding the model's construction, training, and application?
   optional ModelCardConsiderations considerations = 4;
+  // Specifies optional, custom, properties
+  repeated Property properties = 5;
 
   message ModelParameters {
     // The overall approach to learning used by the model for problem solving.

schema/bom-1.5.xsd

@@ -2998,7 +2998,7 @@ limitations under the License.
                                                             describe any mitigation strategy implemented.
                                                         </xs:documentation>
                                                     </xs:annotation>
-                                                </xs:element>
+                                                </xs:element>                                               
                                             </xs:sequence>
                                         </xs:complexType>
                                     </xs:element>
@@ -3008,6 +3008,16 @@ limitations under the License.
                     </xs:sequence>
                 </xs:complexType>
             </xs:element>
+            <xs:element name="properties" type="bom:propertiesType" minOccurs="0" maxOccurs="1">
+                <xs:annotation>
+                    <xs:documentation>Provides the ability to document properties in a name/value store.
+                        This provides flexibility to include data not officially supported in the standard
+                        without having to use additional namespaces or create extensions. Property names
+                        of interest to the general public are encouraged to be registered in the
+                        CycloneDX Property Taxonomy - https://github.com/CycloneDX/cyclonedx-property-taxonomy.
+                        Formal registration is OPTIONAL.</xs:documentation>
+                </xs:annotation>
+            </xs:element>
         </xs:sequence>
         <xs:attribute name="bom-ref" type="bom:refType">
             <xs:annotation>

schema/bom-1.6.proto

@@ -1152,6 +1152,8 @@ message ModelCard {
   optional QuantitativeAnalysis quantitativeAnalysis = 3;
   // What considerations should be taken into account regarding the model's construction, training, and application?
   optional ModelCardConsiderations considerations = 4;
+  // Specifies optional, custom, properties
+  repeated Property properties = 5;
 
   message ModelParameters {
     // The overall approach to learning used by the model for problem-solving.

schema/bom-1.6.xsd

@@ -3386,6 +3386,16 @@ limitations under the License.
                     </xs:sequence>
                 </xs:complexType>
             </xs:element>
+            <xs:element name="properties" type="bom:propertiesType" minOccurs="0" maxOccurs="1">
+                <xs:annotation>
+                    <xs:documentation>Provides the ability to document properties in a name/value store.
+                        This provides flexibility to include data not officially supported in the standard
+                        without having to use additional namespaces or create extensions. Property names
+                        of interest to the general public are encouraged to be registered in the
+                        CycloneDX Property Taxonomy - https://github.com/CycloneDX/cyclonedx-property-taxonomy.
+                        Formal registration is OPTIONAL.</xs:documentation>
+                </xs:annotation>
+            </xs:element>
         </xs:sequence>
         <xs:attribute name="bom-ref" type="bom:refType">
             <xs:annotation>

schema/bom-1.7.proto

@@ -1254,6 +1254,8 @@ message ModelCard {
   optional QuantitativeAnalysis quantitativeAnalysis = 3;
   // What considerations should be taken into account regarding the model's construction, training, and application?
   optional ModelCardConsiderations considerations = 4;
+  // Specifies optional, custom, properties
+  repeated Property properties = 5;
 
   message ModelParameters {
     // The overall approach to learning used by the model for problem-solving.

schema/bom-1.7.xsd

@@ -3629,6 +3629,16 @@ limitations under the License.
                     </xs:sequence>
                 </xs:complexType>
             </xs:element>
+            <xs:element name="properties" type="bom:propertiesType" minOccurs="0" maxOccurs="1">
+                <xs:annotation>
+                    <xs:documentation>Provides the ability to document properties in a name/value store.
+                        This provides flexibility to include data not officially supported in the standard
+                        without having to use additional namespaces or create extensions. Property names
+                        of interest to the general public are encouraged to be registered in the
+                        CycloneDX Property Taxonomy - https://github.com/CycloneDX/cyclonedx-property-taxonomy.
+                        Formal registration is OPTIONAL.</xs:documentation>
+                </xs:annotation>
+            </xs:element>
         </xs:sequence>
         <xs:attribute name="bom-ref" type="bom:refType">
             <xs:annotation>