Fix usage reporting. (#1964)

## Description

Fixes the amount of cameras and pose estimators reported by usage reporting.

## Meta

Merge checklist:
- [x] Pull Request title is [short, imperative
summary](https://cbea.ms/git-commit/) of proposed changes
- [x] The description documents the _what_ and _why_
- [ ] If this PR changes behavior or adds a feature, user documentation
is updated
- [ ] If this PR touches photon-serde, all messages have been
regenerated and hashes have not changed unexpectedly
- [ ] If this PR touches configuration, this is backwards compatible
with settings back to v2024.3.1
- [ ] If this PR touches pipeline settings or anything related to data
exchange, the frontend typing is updated
- [ ] If this PR addresses a bug, a regression test for it is added

---------

Signed-off-by: Jade Turner <spacey-sooty@proton.me>

photon-lib/py/photonlibpy/photonCamera.py

@@ -18,6 +18,7 @@
 from enum import Enum
 from typing import List
 
+import hal
 import ntcore
 
 # magical import to make serde stuff work
@@ -48,6 +49,8 @@ def setVersionCheckEnabled(enabled: bool):
 
 
 class PhotonCamera:
+    instance_count = 1
+
     def __init__(self, cameraName: str):
         """Constructs a PhotonCamera from the name of the camera.
 
@@ -108,6 +111,13 @@ class PhotonCamera:
         # Start the time sync server
         inst.start()
 
+        # Usage reporting
+        hal.report(
+            hal.tResourceType.kResourceType_PhotonCamera.value,
+            PhotonCamera.instance_count,
+        )
+        PhotonCamera.instance_count += 1
+
     def getAllUnreadResults(self) -> List[PhotonPipelineResult]:
         """
         The list of pipeline results sent by PhotonVision since the last call to getAllUnreadResults().