Added an additional command line flag -k to tetra-rx that allows for the
loading of a file containing network and key definitions.
Change-Id: I65b7ac8feb3c2a9a8cac95149f625e9ef534b66c
Added keyfile parsing code, as well as various other improvements such as definition/enum updates and freeing the tetra_crypto_context when done
Change-Id: I1c7afeeb2dcf97ece44bb4b604f44ba88882b93f
A crypto folder has been added containing only a single c and h file at the moment. These files contain structs and high level functionality pertaining to TETRA crypto support which can be added in future patches.
Change-Id: I63bc712630ae5dbaa049c129d456f7aef5bda863