Add script to setup build environment for Vivado/Vitis 2022.1

[catkira]

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feedback and change requests are welcome.

setup_env_2022.1.sh needs to be sourced.

[catkira]

Do you think patching Vitis and removing ld.so.conf should automatically be done by this script too?

I think its good that the users do it by hand, so they also know how to undo it if needed.