Create subcommands to translate two types of queries

[temikfart]

There are two types of queries:

• which migrate database schema (DDL);
• which migrate database data (DML).

I suggest to separate translation for each type of queries. We can create subcommands. It can be:

• Use scc schema [OPTIONS] to translate schema migration queries and produce json with graph structure;
• Use scc data [OPTIONS] to translate data migration queries and produce Cypher queries, to create graph in Neo4j GDBMS.