Add hasSameSlotsOf method to RedisClusterNode for a quick slots comparison

[alessandrosimi-sa]

This PR is related to the issue #1011.

What

Added the hasSameSlotsOf method to the RedisClusterNode class so it can be used by the TopologyComparators class while is comparing the node slots.
Added unit tests to verify the behaviour of the new method.

Why
Solve the performance issue #1011

[codecov]

Codecov Report

Merging #1013 into master will decrease coverage by 0.37%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##             master    #1013      +/-   ##
============================================
- Coverage     80.89%   80.52%   -0.38%     
+ Complexity     5794     5754      -40     
============================================
  Files           416      416              
  Lines         18984    18986       +2     
  Branches       2194     2194              
============================================
- Hits          15358    15288      -70     
- Misses         2587     2663      +76     
+ Partials       1039     1035       -4

Impacted Files	Coverage Δ	Complexity Δ
...uce/core/cluster/topology/TopologyComparators.java	87.87% <100%> (+1.01%)	21 <0> (ø)	⬇️
...re/cluster/models/partitions/RedisClusterNode.java	95.68% <100%> (+0.07%)	49 <2> (+2)	⬆️
...re/cluster/StatefulRedisClusterConnectionImpl.java	55.68% <0%> (-32.96%)	24% <0%> (-12%)
...va/io/lettuce/core/cluster/RedisClusterClient.java	77.7% <0%> (-5.58%)	103% <0%> (-11%)
...cluster/RedisAdvancedClusterAsyncCommandsImpl.java	83.03% <0%> (-2.68%)	85% <0%> (-3%)
...core/cluster/ClusterDistributionChannelWriter.java	76.06% <0%> (-2.66%)	50% <0%> (-2%)
...va/io/lettuce/core/AbstractRedisAsyncCommands.java	95.23% <0%> (-2.05%)	396% <0%> (-9%)
.../core/cluster/topology/ClusterTopologyRefresh.java	79.36% <0%> (-1.59%)	31% <0%> (ø)
.../io/lettuce/core/dynamic/ReactiveTypeAdapters.java	83.78% <0%> (-1.36%)	1% <0%> (ø)
...main/java/io/lettuce/core/RedisChannelHandler.java	73.83% <0%> (-0.94%)	31% <0%> (-2%)
... and 7 more

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[mp911de]

Thanks a lot. That's merged, polished, and backported now.