message: Change meta to metadata suffix in new functions.
diff: @@ -137,20 +137,20 @@ extern "C" {
  const char *const vk)
  );
  - extern indy_error_t indy_store_key_meta(indy_handle_t command_handle
  + extern indy_error_t indy_store_key_metadata(indy_handle_t command_handle
  const char *const vk,
  - const char *const meta,
  + const char *const metadata,
  void (*cb)(indy_handle_t command_handle,
  indy_error_t err)
  );
  - extern indy_error_t indy_get_key_meta(indy_handle_t command_handle
  + extern indy_error_t indy_get_key_metadata(indy_handle_t command_handle
  const char *const vk,
  void (*cb)(indy_handle_t command_handle,
  indy_error_t err,
  - const char *const meta)
  + const char *const metadata)
  );
  extern indy_error_t indy_key_for_did(indy_handle_t command_handle
  @@ -170,20 +170,20 @@ extern "C" {
  const char *const transport_vk)
  );
  - extern indy_error_t indy_store_did_meta(indy_handle_t command_handle
  + extern indy_error_t indy_store_did_metadata(indy_handle_t command_handle
  const char *const did,
  - const char *const meta,
  + const char *const metadata,
  void (*cb)(indy_handle_t command_handle,
  indy_error_t err)
  );
  - extern indy_error_t indy_get_did_meta(indy_handle_t command_handle
  + extern indy_error_t indy_get_did_metadata(indy_handle_t command_handle
  const char *const did,
  void (*cb)(indy_handle_t command_handle,
  indy_error_t err,
  - const char *const meta)
  + const char *const metadata)
  );
  /// Signs a message by a signing key associated with my DID. The DID with a signing key
  