[close #712] Filter out META-INF/LICENSE when packaging

[jiaminglu]

Fixes duplicated files in the resulting jar archieve.

[codecov]

Codecov Report

Patch coverage: 28.57% and project coverage change: -0.20 ⚠️

Comparison is base (dda1029) 38.09% compared to head (585fb3e) 37.90%.

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #713      +/-   ##
============================================
- Coverage     38.09%   37.90%   -0.20%     
+ Complexity     1613     1605       -8     
============================================
  Files           278      278              
  Lines         17462    17469       +7     
  Branches       1984     1986       +2     
============================================
- Hits           6653     6622      -31     
- Misses        10154    10186      +32     
- Partials        655      661       +6     

Impacted Files	Coverage Δ
src/main/java/org/tikv/common/util/Pair.java	53.84% <28.57%> (-29.49%)	⬇️
src/main/java/org/tikv/common/pd/PDError.java	0.00% <0.00%> (-30.31%)	⬇️
...java/org/tikv/common/operation/PDErrorHandler.java	40.00% <0.00%> (-20.00%)	⬇️
src/main/java/org/tikv/common/region/TiStore.java	56.41% <0.00%> (-5.13%)	⬇️
...va/org/tikv/common/region/StoreHealthyChecker.java	69.62% <0.00%> (-3.80%)	⬇️
src/main/java/io/grpc/stub/ClientCalls.java	46.20% <0.00%> (-2.32%)	⬇️
...ty/handler/codec/http2/Http2ConnectionHandler.java	45.96% <0.00%> (-0.98%)	⬇️
src/main/java/io/grpc/internal/ClientCallImpl.java	56.65% <0.00%> (-0.73%)	⬇️
src/main/java/org/tikv/common/PDClient.java	59.10% <0.00%> (+0.23%)	⬆️
src/main/java/org/tikv/txn/TxnExpireTime.java	73.68% <0.00%> (+10.52%)	⬆️

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

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.