Add support for AOP

[saskodh]

Background

Aspect-oriented programming enables modularization of the cross-cutting concerns. Cross-cutting concerns are generic functionality that is needed in many places in one application. Example: Logging, Transaction management, Security, Caching, Error handing.. Failing to modularize the cross-cutting concerns leads to:

• coupling of concerns (increases code complexity and reduces the readablity)
• same concern is spread accross the codebase (code duplication)

Example requirement solvable with AOP: Perform a role based security check before every application method.

Task

• check whether we can itegrate with aspect.js (small library providing essential for AOP in JavaScript)
• for the moment it's enough to have a working proof-of-concept which can demostrate the power of AOP

[saskodh]

@draganAndonovski please add an example usage in the framework-showcase project.