Bump version to 1.2.0.0 and fix release build configuration

- Bump FileVersion and ProductVersion to 1.2.0.0 in the Win32 Release
  build configuration
- Remove erroneous debug-symbol overrides from the Cfg_1_Win32 (Release)
  PropertyGroup: DCC_DebugInformation=2 and DCC_LocalDebugSymbols=true
  were overriding the correct Cfg_1 values (0 and false), causing release
  builds to embed TD32 debug information and skip optimisation
- Set DCC_SymbolReferenceInfo=0 and DCC_MapFile=0 in Release Win32 to
  suppress symbol reference output and map file generation
- DCC_Optimize=true and DCC_AssertionsAtRuntime=false remain in place

Add files via upload