Support table declaration from a database bound module inside a package

[eywalker]

Current implementation doesn't support creating table from the doc-string in a module defined inside a package because the module full name is of the form package.subpackage.module whereas first line of declaration is expected to be modue.classname.

[eywalker]

Partially fixed this issue by modifying the check such that only the module.classname part has to match against what's in the declaration string.