feat: sensor filter option

Filter out sensors based on regex matches.
This allows removing all unit text suffixes if, for example, the panel
image already contains the unit text.

cfg/sensor-mapping/sysinfo-to-aoostar-filter.cfg

@@ -0,0 +1,9 @@
+# Filter out specified sensor keys of the corresponding sensor file without the `-filter` suffix.
+#
+# Sensor filter for: aster-sysinfo
+#
+# Format: one RegEx entry per line.
+# Empty lines and lines starting with # are filtered out.
+
+# remove all temperature sensor units
+^temperature_.*#unit