Added build/ and project/ entries for the git ignore file
Fix syntax error
Added the skeleton of a build script.

This script compiles all currently written modules and test benches
Output is places in build/work
Uses src/file_list.manifest to source all of its input files.
build order is worked out automatically.
 On branch develop
	new file:   src/file_list.manifest
	new file:   tools/runbuild.sh