Create a framework Manager to perform the simple integration test

[NickDraper]

This should initially contain

void initialise()
- to create all of the required services etc
Algorithm createAlgorithm (string algName)
- use the algorithm factory to create an instance of an algorithm
Algorithm createAlgorithm (string algorithm, string[] properties)
- as above but use the array of strings to set algorithm properties
Algorithm exec(string algorithm, string[] properties)
- as above but also execute the algorithm
Workspace getWorkspace (string wsName)
- returns a shared pointer to the workspace requested

All of these need to throw realistic exceptions for error cases.

[NickDraper]

This issue was originally trac ticket 30