Pigeond (#25561)

* split out pigeond from boardd

* also want to turn off power

* fix manager calls

* move to sensord folder

* release files:

* add assistnow code

* no bare except

* add test script to test TTFF

Co-authored-by: Comma Device <device@comma.ai>

common/params.cc

@@ -84,6 +84,7 @@ private:
 
 std::unordered_map<std::string, uint32_t> keys = {
     {"AccessToken", CLEAR_ON_MANAGER_START | DONT_LOG},
+    {"AssistNowToken", PERSISTENT},
     {"AthenadPid", PERSISTENT},
     {"AthenadUploadQueue", PERSISTENT},
     {"CalibrationParams", PERSISTENT},