aria_mps function with projectaria-mps package not mentioned in Gen 1 docs

[KevinyWu]

aria_mps is not a binary in projectaria-tools verrsion 2.0.0

Installing the projectaria-mps package to use aria_mps is not mentioned in the Gen 1 docs:

https://facebookresearch.github.io/projectaria_tools/docs/ARK/mps/request_mps/mps_cli_getting_started

[vijay609]

Kevin,
Thanks for reporting this. We will update the gen1 docs to include this information.