[subset] sketch out support for a call that lists all codepoints present in a font. Implement support for it in format 4 cmap sub table.

Reinstate support for Visual Studio 2005

Obviously one can use a newer NDK for building an updated HarfBuzz
instead that now pretty old version however I am concerned if that
version checking is working with clang that is used with the newer
NDK versions.

Not the best fix but it works and we don't care about brew warnings, so

Fixes https://github.com/harfbuzz/harfbuzz/issues/880

Part of https://github.com/harfbuzz/harfbuzz/issues/923

Fixes https://github.com/harfbuzz/harfbuzz/issues/935

Fixes https://github.com/harfbuzz/harfbuzz/issues/934

Program: Z:\Users\ebrahim\Desktop\harfbuzz\winbuild\util\.libs\hb-shape.exe
File: ../../src/hb-open-type-private.hh, Line 769

Expression: 0 == (Length & 3)

abnormal program termination

Later to be expanded to a more general tool but for now it only supports CBDT, SVG and CBDT.