Make a general introduction to CWL presentation

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Make a generalized CWL presentation for others to use and modify for their owns needs highlighting the mission, capabilities, and benefits of CWL and CWL Projects. Use most recent talks at CZI EOSS conference and Michael's last talk to create.

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Sources here: https://docs.google.com/presentation/d/1PXA7ZTbAiqcSIz0Bq6xL4WwYkwr5Uag1xcLkPwxsIiA/edit?usp=sharing and here: https://docs.google.com/presentation/d/1a2oyioQYk1CII5yAHWpG5K0Buz-6RvpZMDphO5PFwEI/edit?usp=sharing

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Current working version: https://docs.google.com/presentation/d/1t-ZyMs1_iHwsCXplGzlORS53NaK6iVkwooncLETqw5o/edit?usp=sharing

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Created two versions:

1. Long version (same as above):
   https://docs.google.com/presentation/d/1t-ZyMs1_iHwsCXplGzlORS53NaK6iVkwooncLETqw5o/edit?usp=sharing
2. Short version:
   https://docs.google.com/presentation/d/1rehXuIAEcv7_Vd3XPvGIxU7mM8rzmLsPr71gXoYOZuQ/edit?usp=sharing