Fixed output buffer to wc_RsaSSL_Verify so its min size is the key size (needed for inline operations).
Fixed the signature wrapper return codes when using RSA so 0 indicates success.
Fixed signature wrappers use of wc_HashGetDigestSize to return the error code result.
Changed enum wc_HashType and enum wc_SignatureType so all values always exist.
Added new "wc_HashGetOID" which returns the OID for an enum wc_HashType.
Added new "WC_SIGNATURE_TYPE_RSA_W_ENC", that adds the encoded ASN header to the digest using wc_EncodeSignature for RSA signatures.
Added new SIG_TYPE_E and HASH_TYPE_E error types for explicit reporting of sig/hash type not available.
