add "CREATE TABLE table_a LIKE table_b" syntax

[haitaoyao]

Add create table like syntax:

antlr definition:

create_table_like_node returns [CreateTableLikeStatement ret]
    :   CREATE TABLE new_table=from_table_name LIKE base_table=from_table_name
        {ret = factory.createTableLike(new_table, base_table, getBindCount());}
    ;

and the sql will be like this:

CREATE TABLE test LIKE table_b;

[haitaoyao]

May I just support create simple data table and filter out the INDEX and SYSTEM table? @jtaylor-sfdc

[jtaylor-sfdc]

@haitaoyao - we appreciate your interest in contributing. Can you tell us a bit more about your use case?

[jtaylor-sfdc]

This is a duplicate of #592 - we'll use this LIKE syntax to model multi-tenant tables as well as providing this ability as well.