Refactor the serializer of hessian and protobuf.

[ujjboy]

Motivation:

Start to using the com.alipay.sofa.rpc.codec.Serializer, and refactor the serializer of hessian and protobuf.

Modification:

• Delete field serializeFactoryType from SofaRequest because it is only used by Hessian
• Add ByteArrayWrapperByteBuf and ByteStreamWrapperByteBuf.
• Refactor Hessian and protobuf serializer in remoting-bolt to codec-sofa-hessian and codec-protobuf
• Add more test cases.

Result:

• Add two module: codec-sofa-hessian and codec-protobuf
• Fixes Start using the com.alipay.sofa.rpc.codec.Serializer #110

[codecov-io]

Codecov Report

Merging #116 into master will increase coverage by 0.87%.
The diff coverage is 80.4%.

@@             Coverage Diff             @@
##             master    #116      +/-   ##
===========================================
+ Coverage     64.92%   65.8%   +0.87%     
- Complexity      617     647      +30     
===========================================
  Files           266     270       +4     
  Lines         11406   11407       +1     
  Branches       1908    1903       -5     
===========================================
+ Hits           7405    7506     +101     
+ Misses         3014    2939      -75     
+ Partials        987     962      -25

Impacted Files	Coverage Δ	Complexity Δ
...rpc/common/struct/UnsafeByteArrayOutputStream.java	51.51% <ø> (+3.03%)	0 <0> (ø)	⬇️
...nericMultipleClassLoaderSofaSerializerFactory.java	100% <ø> (ø)	15 <0> (?)
.../com/alipay/sofa/rpc/common/RemotingConstants.java	0% <ø> (ø)	0 <0> (ø)	⬇️
.../com/alipay/sofa/rpc/common/utils/StringUtils.java	83.67% <ø> (ø)	0 <0> (ø)	⬇️
...sian/MultipleClassLoaderSofaSerializerFactory.java	86.66% <ø> (ø)	4 <0> (?)
...ofa/rpc/codec/sofahessian/BlackListFileLoader.java	77.55% <ø> (ø)	13 <0> (?)
...essian/SingleClassLoaderSofaSerializerFactory.java	66.66% <ø> (ø)	8 <0> (?)
...GenericSingleClassLoaderSofaSerializerFactory.java	68% <ø> (ø)	9 <0> (?)
.../rpc/common/struct/UnsafeByteArrayInputStream.java	34.14% <ø> (ø)	0 <0> (ø)	⬇️
.../com/alipay/sofa/rpc/core/request/SofaRequest.java	93.02% <ø> (+21.28%)	0 <0> (ø)	⬇️
... and 25 more

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