General rename and documentation clean-up

[loolirer]

I think a general rename would be more beneficial for a more intuitive labeling to directories and files - shorter and direct names would be appreciated.

This will require a throughout modification in the program files and documentation to make everything functional.

I suggest too deleting the "old" directory since it's not been used anymore.

[loolirer]

Suggested structure

For the "MoCapRasp" directory:

• collect -> client
• central -> server

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For "central" (now "server") directory:

• data -> collect
• serverv2Calib.py -> calib.py
• serverv2Ground.py -> ground.py
• serverv2Test.py -> capture.py

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For "collect" (now "client") directory:

• start.sh -> connect.sh
• capture.py -> record.py

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