[fix] removed configuration from the lib. The project-specific configuration must be created int the host project
[fix] function return type
[fix] warning about abs() macro
unised variable
removed unuselesse header sctructure
[enh] more info given in the test
moved test programs to a subdir
[fix] added a omconf.h for the tests
[fix] added header with licence
[fix] warning of missing vsqrtf. added libm
[enh] added Makefile for the tests
updated header with functions definitions
[enh] renamed the test binaries extension. Easier to gitignore
[init] added Thread-Safe FIFO support