test: Add API hinting enpoints

Adding new resources to the http api to enable testing of the hinting
functionality.

Signed-off-by: Jack Thomson <jackabt@amazon.com>

Author: JackThomson2

tests/framework/http_api.py

@@ -127,6 +127,9 @@ def __init__(self, api_usocket_full_name, *, on_error=None):
         self.mmds_config = Resource(self, "/mmds/config")
         self.balloon = Resource(self, "/balloon")
         self.balloon_stats = Resource(self, "/balloon/statistics")
+        self.balloon_hinting_start = Resource(self, "/balloon/hinting/start")
+        self.balloon_hinting_status = Resource(self, "/balloon/hinting/status")
+        self.balloon_hinting_stop = Resource(self, "/balloon/hinting/stop")
         self.vsock = Resource(self, "/vsock")
         self.snapshot_create = Resource(self, "/snapshot/create")
         self.snapshot_load = Resource(self, "/snapshot/load")