Add fileexporter component with updated functionality

[moh-osman3]

What does this PR do?

This PR adds the fileexporter component directly rather than using the component currently in opentelemetry-collector-contrib package.

Adding the component directly allows us to use the functionality from this PR open in the contrib repository. This contrib PR is taking a while to get approved so in the meantime it might be better to add these changes to start using these components to record data in production.

Example config

exporters:
  file:
    path: ../../gen/receiver/filereceiver/testdata/metrics.pb
    compression: zstd
    format: proto

Testing

Ran the cmd/otelarrowcol with the fileexporter component and successfully wrote to file in the desired format/compression

(cc: @jmacd)

[jmacd]

I expect this to be short-lived, as we wait for the contrib repo to accept & review this functionality. Until then, it will be nice to be able to run telemetry-generator from in-repo components. Thanks @moh-osman3.