Consider pypi deployments for layer helpers

[alexiswl]

Currently built / building the following lambda layer helpers (set of handy functions that that interact with the respective microservice using the python requests library)

• metadata manager
• library manager
• fastq manager
• workflow manager

Makes use of the TypedDict class too so that typehints within IDEs are provided for users.

Rather than import the layer in future, one could just add in the pypi library into their requirements.txt