[angelscript] Added feature to optionally install all Angelscript standard addons

[adam4813]

Adds a feature to install the standard addons alongside the angelscript library that can be linked by the consumer of the library.

For those searching how to consume these addons in the future, simply create a .cpp file that contains the following:

#include <angelscript/scriptstdstring/scriptstdstring.cpp>
#include <angelscript/scriptbuilder/scriptbuilder.cpp>
...

and compile that source file into whatever you are building (you only need to compile in the .cpp files).

See here official sdk for a list of addons. Autowrappper generator might not be useful to consume.

The full list of installed addon files is below

angelscript/autowrapper/aswrappedcall.h
angelscript/autowrapper/generator/generateheader.cpp
angelscript/contextmgr/contextmgr.cpp
angelscript/contextmgr/contextmgr.h
angelscript/datetime/datetime.cpp
angelscript/datetime/datetime.h
angelscript/debugger/debugger.cpp
angelscript/debugger/debugger.h
angelscript/scriptany/scriptany.cpp
angelscript/scriptany/scriptany.h
angelscript/scriptarray/scriptarray.cpp
angelscript/scriptarray/scriptarray.h
angelscript/scriptbuilder/scriptbuilder.cpp
angelscript/scriptbuilder/scriptbuilder.h
angelscript/scriptdictionary/scriptdictionary.cpp
angelscript/scriptdictionary/scriptdictionary.h
angelscript/scriptfile/scriptfile.cpp
angelscript/scriptfile/scriptfile.h
angelscript/scriptfile/scriptfilesystem.cpp
angelscript/scriptfile/scriptfilesystem.h
angelscript/scriptgrid/scriptgrid.cpp
angelscript/scriptgrid/scriptgrid.h
angelscript/scripthandle/scripthandle.cpp
angelscript/scripthandle/scripthandle.h
angelscript/scripthelper/scripthelper.cpp
angelscript/scripthelper/scripthelper.h
angelscript/scriptmath/scriptmath.cpp
angelscript/scriptmath/scriptmath.h
angelscript/scriptmath/scriptmathcomplex.cpp
angelscript/scriptmath/scriptmathcomplex.h
angelscript/scriptstdstring/scriptstdstring.cpp
angelscript/scriptstdstring/scriptstdstring.h
angelscript/scriptstdstring/scriptstdstring_utils.cpp
angelscript/serializer/serializer.cpp
angelscript/serializer/serializer.h
angelscript/weakref/weakref.cpp
angelscript/weakref/weakref.h

[vicroms]

Hi @adam4813

Thanks for the PR!

I have a question: wouldn't it be useful to have a feature for each add-on?

That way users can install only the ones they need (e.g.: vcpkg install angelscript[serializer]), and if they want them all then they can do vcpkg install angelscript[*].