Add support for TS.QUERYINDEX TS.ALTER TS.INCRBY/TS.DECRBY TS.MADD

[dengliming]

for #53、#57、#56、#55、#54

[dengliming]

It seems that CI/TEST has been taking a long time.

[filipecosta90]

It seems that CI/TEST has been taking a long time.

for some reason the circle build on PRs was disabled. I believe the fastest way to trigger it properly is to add another test to force a code change. I don't see a way on circle to trigger the build myself. Can we add one more test ( for example on Madd with multiple series )? That should do it =)

[codecov]

Codecov Report

Merging #60 into master will increase coverage by 0.01%.
The diff coverage is 82.60%.

@@            Coverage Diff             @@
##           master      #60      +/-   ##
==========================================
+ Coverage   82.44%   82.46%   +0.01%     
==========================================
  Files           6        6              
  Lines         393      439      +46     
==========================================
+ Hits          324      362      +38     
- Misses         35       39       +4     
- Partials       34       38       +4     

Impacted Files	Coverage Δ
common.go	93.10% <ø> (ø)
client.go	86.98% <82.60%> (-1.64%)	⬇️

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[filipecosta90]

thank you for contribution @dengliming =)