fbt: reworked tool path handling (#3105)

* fbt: removed absolute paths from env setup; moved abs paths to cdb tool
* fbt: moved tool lookup to cdb emitter
* fbt: cdb: quote only tools with spaces in path
* typo fix
* fbt: pvs: suppress license expiration warning

scripts/fbt_tools/pvsstudio.py

@@ -48,6 +48,7 @@ def generate(env):
             "@.pvsoptions",
             "-j${PVSNCORES}",
             # "--incremental", # kinda broken on PVS side
+            "--disableLicenseExpirationCheck",
         ],
         PVSCONVOPTIONS=[
             "-a",