udpate doc how to get latest clang-format and cppcheck
Merge pull request #248 from mhamrle/install_deps

udpate doc how to get latest clang-format and cppcheck
OTCrypto/OTCrypto_OpenSSL basic split into two files. Cleanup pending...
Made GetPasswordFromConsoleLowLevel abstract.
Moved concrete implementation to OTCrypto_OpenSSL.
Remove unneeded includes.
Choose OTCrypto implementation via a typedef
Applied clang-format
Removed commented code.