feat: declare the SNMP health OIDs instead of collecting them (0.2.0)

The driver no longer collects over SNMP. SNMP_HEALTH_PROFILE states
where the switch publishes uptime (TimeTicks), CPU and memory (tables
with one row per stack unit, first row as before); the application
polls and computes (napalm-device-types docs/STRUCTURE.md).

Interface counters now come from the 64-bit ifXTable where the switch
has it, as the application reads them for every device.

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "napalm-tplink-jetstream"
-version = "0.1.2"
+version = "0.2.0"
 description = "NAPALM driver for TP-Link Jetstream managed switches"
 readme = "README.md"
 license = { text = "Apache-2.0" }