Collection of importer issues

[Sreenuraj]

This will be a collection of importer issues.

1. Sql import may-not be that efficient, when checked with the create statements from the postgresql documentation, and for almost all example it was giving syntax error.
   eg:

CREATE TABLE video_sales (
did VARCHAR(40) DEFAULT 'luso films',
number INTEGER DEFAULT 0,
total CASH DEFAULT '$0.0'
);

2. Sql importer, not considering the second integer property!!

SQL_mulInteger.mp4

3. JSON importer, when adding a class with "single character", even if it detects 2 types to be imported, it imports only one. Assuming this is caused because, the second type name is created by deleting a character from the object name given by the user.

json_singleCharImportissue.mp4

4. issue is formatting of the property names:
   4.1. when we import 'role_id', it gets converted to roleId, maybe okay, that is how radical does it, but
   4.2. when user try to create a new property with name 'role_id', '' is not allowed
   4.3. if user wants '' in property name, they have to create it first and then edit it.