#### Why I did it
Update scripts in sonic-buildimage from py-swsssdk to swsscommon
#### How I did it
Change code to use swsscommon.
#### How to verify it
Pass all E2E test case
#### Which release branch to backport (provide reason below if selected)
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- [ ] 201811
- [ ] 201911
- [ ] 202006
- [ ] 202012
- [ ] 202106
- [ ] 202111
- [ ] 202205
#### Description for the changelog
Update scripts in sonic-buildimage from py-swsssdk to swsscommon
#### Link to config_db schema for YANG module changes
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#### A picture of a cute animal (not mandatory but encouraged)
* To add portchannel support in frrcfgd and bgpcfgd
* Update is_zero_ip() to handle portchannel name
Signed-off-by: d-dashkov <Dmytro_Dashkov@Jabil.com>
- Support for non-template based FRR configurations (BGP, route-map, OSPF, static route..etc) using config DB schema.
- Support for save & restore - Jinja template based config-DB data read and apply to FRR during startup
**- How I did it**
- add frrcfgd service
- when frr_mgmg_framework_config is set, frrcfgd starts in bgp container
- when user changed the BGP or other related table entries in config DB, frrcfgd will run corresponding VTYSH commands to program on FRR.
- add jinja template to generate FRR config file to be used by FRR daemons while bgp container restarted
**- How to verify it**
1. Add/delete data on config DB and then run VTYSH "show running-config" command to check if FRR configuration changed.
1. Restart bgp container and check if generated FRR config file is correct and run VTYSH "show running-config" command to check if FRR configuration is consistent with attributes in config DB
Co-authored-by: Zhenhong Zhao <zhenhong.zhao@dell.com>
