fix hessian logger config use wrong path and internal logger

[JervyShi]

Fix #77

Change logger namespace from com.alipay.sofa.middleware.config to com.alipay.sofa.hessian.

Fix log4j config use internal Appender class.

[codecov]

Codecov Report

Merging #78 (22fd9a1) into 3.x (a71bc56) will increase coverage by 0.05%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##              3.x      #78      +/-   ##
==========================================
+ Coverage   26.06%   26.12%   +0.05%     
==========================================
  Files         158      158              
  Lines       11129    11129              
  Branches     1980     1980              
==========================================
+ Hits         2901     2907       +6     
+ Misses       7930     7927       -3     
+ Partials      298      295       -3     

Impacted Files	Coverage Δ
...n/java/com/alipay/hessian/NameBlackListFilter.java	62.50% <ø> (ø)
...main/java/com/caucho/hessian/io/Hessian2Input.java	32.49% <0.00%> (+0.12%)	⬆️
.../com/alipay/hessian/generic/util/GenericUtils.java	82.17% <0.00%> (+1.29%)	⬆️

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[OrezzerO]

LGTM