Updates to exit examples

Hi,

1) The body of examples with revisions made by Gary and myself. 

2) 'Issues.txt' with Gary's questions and my responses.

3) The 'implemented' folder contains the examples that are implemented
and working in pi4soa as indicated by Gary.

4) The 'notimplemented' folder contains examples that either relate to
features that are not implemented in pi4soa (alignment and coordinated
choreographies) as indicated by Gary.

5) The 'questions' folder contains the examples where there are
remaining outstanding questions as per the Issues.txt file.

-Charlton.
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charlton_b@mac.com
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