.def & import library names

[thedmd]

Done. Patch can be found here.

Two new fileds were added with following default values:

Import library filename:	$(TARGET_OUTPUT_DIR)$(TARGET_OUTPUT_BASENAME)
Definition file filename:	$(TARGET_OUTPUT_DIR)$(TARGET_OUTPUT_BASENAME)

One macro has been added: $(TARGET_OUTPUT_FILENAME) which is filename with extension but without path. Use this in above fields to obtain "old" behaviour (from foobar.dll you will got libfoobar.dll.a).

A word of comment. Current C::B build system is working but it is messy. Several features are implemented more than once in various places, for example adding prefixes and extensions. It is a perfect candidate for refactoring.