add db.has_local

this is True on instruments

seinflux.py

@@ -41,6 +41,7 @@ class SEHistory(InfluxDBWrapper):
         parser.optionxform = str
         parser.read([Path('~/.config/sehistory').expanduser()])
         section = parser[dbname] if dbname else parser[parser.sections()[0]]
+        self.has_local = parser.has_section('local')
         self.instrument_by_stream = {}
         super().__init__(*(section[k] for k in ('uri', 'token', 'org', 'bucket')), access=access)