Per function invocation resolution

[AdrianPell]

Description

Adds per-function-invocation resolution of dependencies. Dependencies can be specified as follows:

• SingleInstance() - singleton scoped to the class implementing the function
• InstancePerLifetimeScope() - scoped to the function instance
• otherwise - transient scope

Fixes #16

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

How Has This Been Tested?

Existing tests run successfully. New tests for this functionality still to be written.

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[rawrspace]

Sorry for the delay. I just reviewed the code and it all checks out. Thanks for contributing.