Removed old and unused files

More work still to be done
Restructured Folders

Hopefully things will easier to find now.  Will have to keep it
organzied
New Branch just for codegen

This will be used for codegen DLL work.  Need a lot of test scripts to
be added
Compiled PHYReceiver Class

Moving away from using private directories since they make dev annoying
when you cannot find a function
Updated startup script

Now new folders are added automagically at matlab startup
More receiver integration

Integrated OFDMbits2letters and OFDMletters2bits into recevier class
codegened successfully, now need to make improvements
Cleaned up class
fixed issue with OFDMletters2bits, works fine with interpretted and codegen now
remove test files
added tx side to PHY, assumes bit input
fixed some bugs with transmit side, still need to do cleanup
cleaned some things up.  Make sure the buffer is at least 1 sample larger than the frame
cleaned some things up.  Make sure the buffer is at least 1 sample larger than the frame
Updated test scripts
Merge remote-tracking branch 'origin/codegenDLL' into codegenDLL

Conflicts:
	sdruTxRx/PHY/PHYTransmitter.m
	sdruTxRx/PHY/testPHYReceiverClass.m
Restructured folders

Now base classes are in there own folder
created template for interation with PHY layer classes
Update PHYTemplate.m
Update PHYTemplate.m