[ISSUE #1187][Java] Implementation of lite simple consumer

[f1amingo]

Change-Id: I7d00d5348672f88d6d2cf492f7323131656a6c0c

Which Issue(s) This PR Fixes

Fixes #1187

Brief Description

Implementation of lite simple consumer

How Did You Test This Change?

Unit Test.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 68.11024% with 81 lines in your changes missing coverage. Please review.
✅ Project coverage is 53.97%. Comparing base (c159a67) to head (d8b4b2b).
⚠️ Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
...ent/java/impl/consumer/LiteSimpleConsumerImpl.java	43.75%	18 Missing ⚠️
...nt/java/impl/consumer/LiteSubscriptionManager.java	86.00%	13 Missing and 1 partial ⚠️
...mq/client/java/impl/consumer/PushConsumerImpl.java	13.33%	13 Missing ⚠️
...lient/java/impl/consumer/LitePushConsumerImpl.java	0.00%	12 Missing ⚠️
.../client/java/impl/consumer/SimpleConsumerImpl.java	41.17%	10 Missing ⚠️
...cketmq/client/java/impl/consumer/ConsumerImpl.java	66.66%	2 Missing and 3 partials ⚠️
...a/impl/consumer/LiteSimpleConsumerBuilderImpl.java	84.61%	4 Missing ⚠️
...g/apache/rocketmq/client/java/impl/ClientType.java	50.00%	2 Missing ⚠️
...pache/rocketmq/client/java/misc/ProtobufUtils.java	89.47%	1 Missing and 1 partial ⚠️
...t/java/impl/consumer/SubscriptionLoadBalancer.java	50.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1188      +/-   ##
============================================
+ Coverage     53.17%   53.97%   +0.79%     
- Complexity      642      788     +146     
============================================
  Files           208      219      +11     
  Lines         13729    14392     +663     
  Branches       5512     5570      +58     
============================================
+ Hits           7301     7768     +467     
- Misses         6062     6226     +164     
- Partials        366      398      +32     

Flag	Coverage Δ
java	63.09% <68.11%> (+1.31%)	⬆️

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