feat: add DeviceConfig

[mfiedorowicz]

Add DeviceConfig entity type with startup, running, and candidate configuration fields. Include optional config field on Device message.

[github-actions]

Go test coverage

STATUS	ELAPSED	PACKAGE	COVER	PASS	FAIL	SKIP
🟢 PASS	1.24s	github.com/netboxlabs/diode/diode-server/auth	44.7%	42	0	0
🟢 PASS	1.50s	github.com/netboxlabs/diode/diode-server/auth/cli	0.0%	0	0	0
🟢 PASS	1.02s	github.com/netboxlabs/diode/diode-server/authutil	82.8%	5	0	0
🟢 PASS	0.10s	github.com/netboxlabs/diode/diode-server/dbstore/postgres	0.0%	0	0	0
🟢 PASS	1.08s	github.com/netboxlabs/diode/diode-server/entityhash	86.7%	16	0	0
🟢 PASS	1.18s	github.com/netboxlabs/diode/diode-server/entitymatcher	83.0%	80	0	0
🟢 PASS	0.21s	github.com/netboxlabs/diode/diode-server/errors	0.0%	0	0	0
🟢 PASS	1.33s	github.com/netboxlabs/diode/diode-server/ingester	82.7%	25	0	0
🟢 PASS	1.09s	github.com/netboxlabs/diode/diode-server/matching	61.6%	17	0	0
🟢 PASS	1.06s	github.com/netboxlabs/diode/diode-server/migrator	70.4%	4	0	0
🟢 PASS	4.16s	github.com/netboxlabs/diode/diode-server/netboxdiodeplugin	83.6%	40	0	0
🟢 PASS	2.64s	github.com/netboxlabs/diode/diode-server/reconciler	56.5%	124	0	0
🟢 PASS	1.01s	github.com/netboxlabs/diode/diode-server/reconciler/applier	85.7%	1	0	0
🟢 PASS	0.09s	github.com/netboxlabs/diode/diode-server/reconciler/changeset	0.0%	0	0	0
🟢 PASS	1.09s	github.com/netboxlabs/diode/diode-server/reconciler/differ	63.8%	6	0	0
🟢 PASS	1.02s	github.com/netboxlabs/diode/diode-server/server	85.7%	14	0	0
🟢 PASS	1.01s	github.com/netboxlabs/diode/diode-server/strcase	100.0%	24	0	0
🟢 PASS	1.02s	github.com/netboxlabs/diode/diode-server/telemetry	28.0%	26	0	0
🟢 PASS	1.02s	github.com/netboxlabs/diode/diode-server/telemetry/otel	91.7%	25	0	0
🟢 PASS	0.11s	github.com/netboxlabs/diode/diode-server/tls	0.0%	0	0	0
🟢 PASS	1.01s	github.com/netboxlabs/diode/diode-server/version	100.0%	2	0	0

Total coverage: 55.3%