FX3 Firmware: [Broken] In the process of refactoring makefile

Previous tweaks to support linux command line build broke build for
Windows+Eclipse environment.

These changes so far have scraped the FX3 toolchain makefile
dependencies and started fresh, pruning out various signs of bitrot.

Currently this build is broken: It looks like I'm still missing some gcc
library?
FX3 Firmware: [Broken] Fixed missing libc in LDFLAGS
FX3 Firmware: [Broken] Cleaned up comments in sample toolchain makefile
FX3 Firmware: [Broken] Fixed up build in linux. Windows not tested.
FX3 Firmware: Build fixed for Windows

Unfortunately, there's a hokey little hack to handle some Windows
path issues.

Upcoming changesets will include some project file cleanup.
FX3 Firmware: Cleaned up project files

Eclipse project files adjusted to use new Makefile and to fix
an incorrect path.

Removed unneeded Debug directory.
FX3 Firmware:  Removed build debug output, fixed linux elf2img build
Merge branch 'cli-dev' of https://github.com/jynik/bladeRF into dev-cli
Merge branch 'cli-dev' of https://github.com/jynik/bladeRF into dev-cli
cli: Adding some extra parsing and options.