* Update JS grpc-tools to 1.12.4
1.11.2 didn't have support for arm64 so we had to do all this extra stuff
in the Dockerfile.
1.11.3 added support for Darwin arm64 and 1.12.4 finally adds support for
Linux arm64. This means we can completely remove extra cruft and just
install grpc-tools 1.12.4 on all architectures.
* Add comment to ptyHostService.proto
* Adjust go_package of lib/prehog Go protobufs
This makes them follow the pattern set out by api/proto and proto.
* Adjust go_package of lib/teleterm Go protobufs
* Use single buf.gen.yaml to generate JS protos
This also entailed changing the location of lib/teleterm protos and changing
the value of their package specifier to match the conventions in other parts
of the codebase. This is a breaking change but that is fine for Connect
as the protos are used locally only and each build ships with matching
protobufs.
* Make web/packages/teleterm use protobufs from gen-proto-js
We used to copy protobufs over to web/packages/teleterm/src/services/tshd
since webapps used to be in a separate repo.
This is no longer the case, so we can just make teleterm use protobufs
from gen-proto-js.
* Move prehog & teleterm protos into proto/teleport/lib
* Generate JS protos to gen/proto/js
* Move lib/teleterm Go protobufs to gen/proto/go
* Move lib/prehog Go protobufs to gen/proto/go
* Rename lib/teleterm proto package
* Re-enable linter rules for teleterm & prehog
* Update prehogv1 path in usagereporter_test.go
* Use except instead of ignore_only to allow Google API-style responses
* Add UNARY_RPC to api/proto & proto
* Ignore gen/ when running addlicense
* buf-js.gen.yaml: Remove comment about lack of go_package for JS
* Move prehog protos to proto/prehog/v1alpha
* Adjust prehog's go_package to match proto package
