Make use of LIBPREFIX and LIBSUFFIX in packages

[rlebeau]

It is a maintenance nightmare having to maintain separate .dpk files for every individual C++Builder/Delphi version. Starting with C++Builder/Delphi 6, the Delphi compiler supports LIBPREFIX and LIBSUFFIX directives. This allows a single .dpk project to produce different-named .BPL output files, while maintaining a single .DCP output file so other packages that require Indy packages would not need to be recompiled.

Related reading: https://www.finalbuilder.com/resources/blogs/advice-for-delphi-library-authors