Add TileDB Serialization Cap'n Proto schema file
Add TileDB Serialization Cap'n Proto schema file

This schema file defines the serialization format for TileDB Queries and
Array schema as used for REST arrays. This file is used to produce the
tiledb-rest.h and tiledb-rest.c++ files.

TileDB-Inc/TileDB,TileDB-Inc/TileDB,TileDB-Inc/TileDB,TileDB-Inc/TileDB