Add photonlibpy (#1040)

* Added a pure-python implementation of photonlib, named photonlibpy and hosted on pypi

---------

Co-authored-by: Matt <matthew.morley.ca@gmail.com>

photon-lib/py/photonlibpy/photonPipelineResult.py

@@ -0,0 +1,38 @@
+from dataclasses import dataclass, field
+
+from photonlibpy.multiTargetPNPResult import MultiTargetPNPResult
+from photonlibpy.packet import Packet
+from photonlibpy.photonTrackedTarget import PhotonTrackedTarget
+
+
+@dataclass
+class PhotonPipelineResult:
+    latencyMillis: float = -1.0
+    timestampSec: float = -1.0
+    targets: list[PhotonTrackedTarget] = field(default_factory=list)
+    multiTagResult: MultiTargetPNPResult = field(default_factory=MultiTargetPNPResult)
+
+    def populateFromPacket(self, packet: Packet) -> Packet:
+        self.targets = []
+        self.latencyMillis = packet.decodeDouble()
+        self.multiTagResult = MultiTargetPNPResult()
+        self.multiTagResult.createFromPacket(packet)
+        targetCount = packet.decode8()
+        for _ in range(targetCount):
+            target = PhotonTrackedTarget()
+            target.createFromPacket(packet)
+            self.targets.append(target)
+
+        return packet
+
+    def setTimestampSeconds(self, timestampSec: float) -> None:
+        self.timestampSec = timestampSec
+
+    def getLatencyMillis(self) -> float:
+        return self.latencyMillis
+
+    def getTimestamp(self) -> float:
+        return self.timestampSec
+
+    def getTargets(self) -> list[PhotonTrackedTarget]:
+        return self.targets