Fix: pool-coordinator chart format, default service name, max body size .etc

[LaurenceLiZhixin]

1. Validate pool-coordinator chart to ensure it is installable.
2. Add default pool coordinator related service name "pool-coordinator-etcd", "pool-coordinator-apiserver", and ports to yurthub default options.
3. Add '--max-txn-ops=1000' to pool-coordinator etcd container command.
4. Add default transfer body size between yurthub and etcd to '100M'

[LaurenceLiZhixin]

After this pr is merged, I'll test both 'leader' and 'follower' mode at the same time, in my dev environment, with many edge nodes.
And I will add all Resources (not only endpoints and endpointslices) , as pool-scope resources, like pods, some CRDs, to test terformance optimization.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (pool-coordinator-dev@7fb43e7). Click here to learn what that means.
The diff coverage is n/a.

@@                   Coverage Diff                   @@
##             pool-coordinator-dev    #1141   +/-   ##
=======================================================
  Coverage                        ?   47.83%           
=======================================================
  Files                           ?      109           
  Lines                           ?    13697           
  Branches                        ?        0           
=======================================================
  Hits                            ?     6552           
  Misses                          ?     6584           
  Partials                        ?      561           

Flag	Coverage Δ
unittests	47.83% <0.00%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

[openyurt-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: LaurenceLiZhixin, rambohe-ch

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [rambohe-ch]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment