Convert frame_validator_tests to GTest

Convert frame_router_tests to GTest

More common settings for unit tests and keyboards

Fix running multiple tests

Running of unit tests

But only if the compilation has succeeded

Build actual tests, convert byte_stuffer_tests

Rules for compiling and linking google test

The makefile actually calls build_test

Basic framework for parsing test targets

Add Google Test submodule

Merge pull request #691 from fredizzimo/fix_line_endings

Fix line endings

Merge branch 'master' into fix_line_endings

Merge pull request #666 from fredizzimo/makefile_overhaul

Makefile overhaul

Fix travis_compiled_push

Normalize line endings

Set eep files to binary mode

Merge remote-tracking branch 'upstream/master' into makefile_overhaul

Merge pull request #664 from linsomniac/infinity_readme

Adding nicer Infinity build instructions.

Merge pull request #685 from fredizzimo/windows10_instructions_typo

Fix minor typo in the readme

Fix bad merge

Led should have been added to KC60, not GH60