* Port over some SP v2 bits
Specifically:
* Add too-large handling to Physical (Consul only for now)
* Contextify some identity funcs
* Update SP protos
* Add size limiting to inmem storage
Merge both functions for creating mongodb containers into one.
Add retries to docker container cleanups.
Require $VAULT_ACC be set to enable AWS tests.
* Listener refactoring and file system permissions
* added listenerutil and move some common code there
* Added test for verifying socket file permissions
* Change default port of agent to 8200
* address review feedback
* Address review feedback
* Read socket options from listener config
* Implemented a warning when tls_cipher_suites includes only cipher suites which are not supprted by the HTTP/2 spec
* Added test for cipher suites
* Added hard fail on startup when all defined cipher suites are blacklisted. Added warning when some ciphers are blacklisted.
* Replaced hard failure with warning. Removed bad cipher util function and replaced it by external library.
* Added missing dependency. Fixed renaming of package name.
* Port over OSS cluster port refactor components
* Start forwarding
* Cleanup a bit
* Fix copy error
* Return error from perf standby creation
* Add some more comments
* Fix copy/paste error
* initial commit for prometheus and sys/metrics support
* Throw an error if prometheusRetentionTime is 0,add prometheus in devmode
* return when format=prometheus is used and prom is disable
* parse prometheus_retention_time from string instead of int
* Initialize config.Telemetry if nil
* address PR issues
* add sys/metrics framework.Path in a factory
* Apply requiredMountTable entries's MountConfig to existing core table
* address pr comments
* enable prometheus sink by default
* Move Metric-related code in a separate metricsutil helper
