feat: add reporter

[arjenzhou]

What is the purpose of the change

Brief changelog

Verifying this change

Checklist

• Make sure there is a ISSUE field for the change (usually
  before you start working on it). Trivial changes like typos do not require a GitHub issue. Your pull request should
  address just this issue, without pulling in other changes - one PR resolves one issue.
• Each commit in the pull request should have a meaningful subject line and body.
• Write a pull request description that is detailed enough to understand what the pull request does, how, and why.
• Write necessary unit-test to verify your logic correction, more mock a little better when cross module dependency
  exist. If the new feature or significant change is committed, please remember to add sample in project.
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[codecov]

Codecov Report

Merging #36 (a1000f6) into master (9eda588) will increase coverage by 0.64%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master      #36      +/-   ##
============================================
+ Coverage     58.66%   59.30%   +0.64%     
- Complexity      159      162       +3     
============================================
  Files            37       38       +1     
  Lines           912      919       +7     
  Branches         62       61       -1     
============================================
+ Hits            535      545      +10     
+ Misses          334      332       -2     
+ Partials         43       42       -1     

Impacted Files	Coverage Δ
...de/xab/porter/transfer/channel/DefaultChannel.java	73.33% <ø> (+8.62%)	⬆️
core/src/main/java/de/xab/porter/core/Session.java	100.00% <100.00%> (ø)
core/src/main/java/de/xab/porter/core/Task.java	89.36% <100.00%> (+1.26%)	⬆️
...de/xab/porter/transfer/jdbc/reader/JDBCReader.java	63.41% <100.00%> (+0.51%)	⬆️
.../xab/porter/transfer/reporter/DefaultReporter.java	100.00% <100.00%> (ø)

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