feat: add visits and shiny usage to metrics api

Author: tdstein

src/posit/connect/metrics/metrics.py

@@ -1,7 +1,9 @@
 """Metric resources."""
 
 from .. import resources
+from .shiny_usage import ShinyUsage
 from .usage import Usage
+from .visits import Visits
 
 
 class Metrics(resources.Resources):
@@ -16,3 +18,11 @@ class Metrics(resources.Resources):
     @property
     def usage(self) -> Usage:
         return Usage(self._ctx)
+
+    @property
+    def visits(self) -> Visits:
+        return Visits(self._ctx)
+
+    @property
+    def shiny_usage(self) -> ShinyUsage:
+        return ShinyUsage(self._ctx)