[feature] global class name prefix and suffix

[karsany]

I suggest a new feature:

Scenario:
Developer would like to define global rule for class name prefixes and/or suffixes.

Example:
Given two tables in the database: customer and order_detail.

When the developer adds this to the config file:

 classNameGlobalRule:
   - prefix: Db
   - suffix: DTO

Both the prefix and suffix is optional.

Then the generator generates:

• from table customer the DbCustomerDTO class.
• from table order_detail the DbOrderDetailDTO class.

[seratch]

Indeed, this one may be useful for some users.