Add Teknihall protocol

Same stuff with procol.c, direct github.com procotol.c changes in commit 79edf79. 

Otherwise please add protocol.c remaining inserts:

Insert line 127:
<code>
#ifdef PROTOCOL_TEKNIHALL
	#include "../protocols/teknihall.h"
#endif
</code>

Insert Line 228:
<code>
#ifdef PROTOCOL_TEKNIHALL
	teknihallInit();
#endif
</code>