Update submodule and build script

Author: InfinityGhost

.gitignore

@@ -1,4 +1,3 @@
-*/bin/
-*/obj/
-build/
+bin/
+obj/
 .vscode/

.modules/OpenTabletDriver

@@ -1,2 +1,8 @@
-rm -rf ./bin
-dotnet build */*.csproj -f netcoreapp3.1 -o ./build
+
+framework="net5"
+output="./bin"
+rm -rvf $output
+
+for project in */*.csproj; do 
+    dotnet build $project -f $framework -o $output
+done