v0.8.2

Features:

1. Support for comparisons in conformance, e.g. "AttributeValue < 5"
2. Experimental conformanceXML flag for ZAP generation which embeds conformance information in attributes, commands and events

Fixes:

1. Data model generation now generates quieterReporting, diagnostics and sourceAttribution qualities
2. Data model PICS codes for base clusters no longer clobber PICS code on aliased clusters