- Update API spec, add AzureSphere RP, remove latest ApiManagement
preview to keep size down
- Generate schema and SDKs

- Generating multiple languages at once is not used - this is now coordinated by the makefile.
- This removes some complicated shared state between steps that attempted to cache certain operations depending on the combination of outputs being requested.

Use arguments to differentiate between v1/v2 and docs/full.

- Add `CODEGEN_VERSION` ENV for switching to v2.
- Remove schema-v2 language as it's identical to schema with `CODEGEN_VERSION=v2`.
- Add emitting of version metadata (but not if we're debugging a single provider or version).

Only generation comments changed.

Upgrade to latest versions of dependencies automatically.

# Conflicts:
#	provider/cmd/pulumi-gen-azure-native/main.go

- Uses manual build.gradle changes for now until pulumi/pulumi-java#1090 is merged.