* msft_github/master:
  [PFCWD]: Add Add support for t0 toplogy and arista fanout testbed (sonic-net#424)
  add orchagent process check before each test and sanity after each test (sonic-net#431)
  Move mem_check.sh into helpers/ directory to conform with location of other helper scripts (sonic-net#435)
  fix tests for t0-116 topology (sonic-net#430)
  Updated labinfo file with Arista fanout sku (sonic-net#429)
  add missing snmp testcases to top level snmp.yml; fixed wrong test file for neighbour test; change arp test comment more readable (sonic-net#428)
  Fix sku-sensors-data for 7060 (sonic-net#427)
  Fix port alias mapping for Arista-7050QX-32S (sonic-net#426)
  [Lag 2] Allow lacp timing tests to retry limited times until succeeded (sonic-net#403)
  [hwsku]: Add Accton-AS7716-32X (sonic-net#405)
  add generate minigrah using testbed_name option (sonic-net#425)
  Update README.testbed.md
  Create README.testbed.Example.md
  Update README.testbed.Config.md
  add missing test case name (sonic-net#417)
  fix typo when assign dscp_mode for decap test (sonic-net#418)
  [repeat harness] rework repeat harness and introduce test case continuous reboot (sonic-net#416)
  allow upgrade sonic via onie or sonic-to-sonic upgrade method (sonic-net#413)
  [topology]: Fix t1-64-lag topology device link base indices (sonic-net#414)
  Run sudo command with log_analyzer (sonic-net#415)
  [sonic tests] use host time instead of ansible time (sonic-net#410)
  [upgrade_sonic]: Fix the hostname in the wait_for condition (sonic-net#411)
  [Test cases] clean up some test cases changes and enabling more tests (sonic-net#409)
  add restart_swss (sonic-net#412)
  [sonic test] introduce a repeat harness (sonic-net#402)
  Update README.test.md
  [bgp_speaker]: always clean up test environment after it finishes (sonic-net#406)
  [vlan]: add vlan test to test by testname (sonic-net#408)
  [bug]: convert the interface from unicode to string (sonic-net#407)
  [VLAN test] Add VLAN test (sonic-net#375)
  [vm]: change the default Front plane port to 4 instead of 8 (sonic-net#404)
  Update README.testbed.Setup.md
  [acl]: Adopt tests with acl-loader to t0 and t1-lag topo. (sonic-net#370)
  add connect_topo command for testbed-cli.sh (sonic-net#398)
  [FIB, BGP speaker] fix t0-116 topology source port list (sonic-net#396)
  [bgp_speaker]: Specify VLAN IP route in case LPM to other nexthop (sonic-net#394)
  [sensor]: Change sensor labels for Arista 7050 and 7260 (sonic-net#395)
  Delete Arista DPMs sensors data (sonic-net#393)
  [bug]: change maximum packet to 9114 to send in the mtu test (sonic-net#391)

Includes sonic-swss-common commits:
```
71dc350 2021-01-07 | Lower the log level for outdated key for SubscriberStateTable notification (sonic-net#441) [Qi Luo]
7e40582 2021-01-08 | Add boost dependencies (sonic-net#442) [Ze Gan]
30a8ddf 2021-01-05 | Change DBConnector::hgetall return type from map to unordered_map (sonic-net#440) [Qi Luo]
021108d 2021-01-02 | MCLAG Enhancements per HLD sonic-net/SONiC#596 (sonic-net#405) [Praveen-Brcm]
54996fc 2021-01-02 | Implement ConfigDBConnector and ConfigDBPipeConnector in C++ (sonic-net#437) [Qi Luo]
8286525 2020-12-27 | Simply refactor DBConnector hgetall() [Qi Luo]
6d1d33b 2020-12-27 | Fix RedisTransactioner: handle empty deque [Qi Luo]
624e0b8 2020-12-26 | Move complex class constructor as explicit, and fix several mistaken copy constructor usage [Qi Luo]
3b983f9 2020-12-30 | [ci]: add timeout to 180 minutes for arm build (sonic-net#439) [lguohan]
f2e4210 2020-12-29 | Add utility for string and redis (sonic-net#434) [Ze Gan]
7a885fd 2020-12-29 | [build]: add build check for arm64 and armhf (sonic-net#436) [lguohan]
47bccc4 2020-12-24 | Add missed vector header to rediscommand.h (sonic-net#435) [Ze Gan]
```