245 a higher level api for state management

[YufengXin]

1. take on the new tag from datamodel for error code handling
2. remove python 3.9 and 3.10
3. instead, update all persistent states, topology, bw, and available vlans in topology json.

[coveralls]

Pull Request Test Coverage Report for Build 13184459136

Details

• 49 of 53 (92.45%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.2%) to 90.812%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/sdx_pce/topology/temanager.py	28	32	87.5%

Totals
Change from base Build 12838545974:	-0.2%
Covered Lines:	1243
Relevant Lines:	1353

---

💛 - Coveralls

[YufengXin]

new tag: 3.0.0.dev8:

1. take on datamodel 3.0.0.dev4 for more error codes
2. added a new function: update_available_vlans() which updates the available vlans per port after provisioning and deletion of a connection. sdx-controller will get the updated topology objects to be saved in database for state persistence on topology, link bandwidth, and port available vlan ranges.
3. a follow-up PR will address the state consistency when topology being updated from OXPs.