migrate http protocol

[lexburner]

migrate jsonrpc protocol to http protocol
migrate origin http protocol to http-invoker protocol

[codecov-io]

Codecov Report

Merging #4781 into master will decrease coverage by 0.1%.
The diff coverage is 58.5%.

@@             Coverage Diff              @@
##             master    #4781      +/-   ##
============================================
- Coverage     64.02%   63.92%   -0.11%     
+ Complexity      452      451       -1     
============================================
  Files           769      769              
  Lines         33179    33172       -7     
  Branches       5229     5229              
============================================
- Hits          21243    21205      -38     
- Misses         9518     9541      +23     
- Partials       2418     2426       +8

Impacted Files	Coverage Δ	Complexity Δ
.../dubbo/rpc/protocol/http/HttpRemoteInvocation.java	0% <ø> (ø)	0 <0> (?)
...rpc/protocol/httpinvoker/HttpRemoteInvocation.java	100% <ø> (ø)	3 <0> (?)
...g/apache/dubbo/rpc/protocol/http/HttpProtocol.java	46.03% <46.03%> (-21.83%)	6 <6> (-5)
.../rpc/protocol/httpinvoker/HttpInvokerProtocol.java	67.85% <67.85%> (ø)	11 <11> (?)
.../remoting/transport/netty4/NettyServerHandler.java	61.9% <0%> (-9.53%)	0% <0%> (ø)
...apache/dubbo/rpc/protocol/dubbo/FutureAdapter.java	53.84% <0%> (-7.7%)	0% <0%> (ø)
...ng/transport/dispatcher/all/AllChannelHandler.java	51.42% <0%> (-5.72%)	0% <0%> (ø)
.../org/apache/dubbo/remoting/ExecutionException.java	15.78% <0%> (-5.27%)	0% <0%> (ø)
...e/dubbo/remoting/transport/netty/NettyChannel.java	57.64% <0%> (-4.71%)	20% <0%> (-1%)
.../apache/dubbo/remoting/transport/AbstractPeer.java	63.04% <0%> (-4.35%)	0% <0%> (ø)
... and 10 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 1bcd921...68d1c2a. Read the comment docs.