Add VHDL Library support to ISE
see issue #113. The purpose of this merge request is to merge code that adds support for VHDL libraries into hdl-make This branch contains 2 commits:
- 1st commit:
- An example of a project using VHDL libraries in ISE
- It also demonstrates symlinking a single source file into two libraries
- 2nd commit:
- Changes to hdlmake to support VHDL libraries in ISE
- If only one library is in use then there should be minimal changes in the output Makefile