oddgen integration (optional) - Generate Test

[PhilippSalvisberg]

Implement the oddgen interface to support sophisticated test generation. It is similar to #10 but the oddgen integration should support file based generation (a file for each package specification and package body) and multiselection. Naming conventions may be handled through parameter settings. Finally all suite paths in a should be evaluated and presented in a tree to just run the tests based on the suite path and not only based on schema/package/procedure paths.

Implementing the oddgen interface does not have an effect if the oddgen extension is not installed. This means it is not necessary to install oddgen. However, if it is installed, oddgen will automatically detect the implementation and provide the generator in its Generators navigator tree.

[PhilippSalvisberg]

In this issue two enhancements are defined:

1. Bulk generating utPLSQL test packages
2. Bulk running utPLSQL tests

In this issue I handle just the first enhancement (bulk generating).

For the second enhancement (bulk running) I opened a new issue #26.