Add common data API endpoint

This fixes #20

Author: sqozz

example.py

@@ -18,3 +18,10 @@
 
 print(mcd_pe.version)
 print(mcd_pe.find_item_or_block('stone'))
+
+# Query common data. E.g. to map the protocol version to a minecraft version
+protocol_version = 754 # example protocol version
+for version in minecraft_data.common().protocolVersions:
+    if version["version"] == protocol_version:
+        print(version["minecraftVersion"]) # 1.16.5
+        break

minecraft_data/__init__.py

@@ -1,7 +1,7 @@
 import os
 import sys
 
-from minecraft_data.tools import convert
+from minecraft_data.tools import convert, commondata
 
 
 class mod(sys.modules[__name__].__class__):
@@ -11,5 +11,11 @@ def __call__(self, version, edition = 'pc'):
         )
         return type(version, (object,), convert(_dir, version, edition))
 
+    def common(self, edition = 'pc'):
+        _dir = os.path.join(
+            os.path.dirname(__file__), "data/data/"
+        )
+        return type('common', (object,), commondata(_dir, edition))
+
 
 sys.modules[__name__].__class__ = mod

minecraft_data/tools.py

@@ -41,6 +41,17 @@ def find_item_or_block(find):
     return ret
 
 
+def commondata(_dir, edition = 'pc'):
+    ret = {}
+    common_path = os.path.join(_dir, edition, 'common')
+    for common_file in os.listdir(common_path):
+        key = common_file.split('.', 1)[0]
+        with open(os.path.join(common_path, common_file)) as f:
+            data = json.load(f)
+            ret.update({key: data})
+    return ret
+
+
 def _grabdata(_dir, datapaths):
     data = {}
     for category, folder in datapaths.items():