Numerical temperature gauge

Added toggle to replace the "GOOD", "OK", and "HIGH" temperature statuses with a numerical temperature gauge based on the highest temperature between the memory, CPU, and GPU and a function to swap between it by simply taping on the "Temp" gauge itself.

common/params.cc

@@ -266,6 +266,7 @@ std::unordered_map<std::string, uint32_t> keys = {
     {"ExperimentalModeViaDistance", PERSISTENT},
     {"ExperimentalModeViaLKAS", PERSISTENT},
     {"ExperimentalModeViaScreen", PERSISTENT},
+    {"Fahrenheit", PERSISTENT},
     {"FireTheBabysitter", PERSISTENT},
     {"ForceAutoTune", PERSISTENT},
     {"ForceFingerprint", PERSISTENT},
@@ -314,6 +315,7 @@ std::unordered_map<std::string, uint32_t> keys = {
     {"NoLogging", PERSISTENT},
     {"NoUploads", PERSISTENT},
     {"NudgelessLaneChange", PERSISTENT},
+    {"NumericalTemp", PERSISTENT},
     {"OneLaneChange", PERSISTENT},
     {"PathEdgeWidth", PERSISTENT},
     {"PathWidth", PERSISTENT},