Rename actions

[skkosuri-amzn]

Issue #, if available:
#6
Description of changes:

Add opendistro to the action names.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

Merging #256 into master will increase coverage by 0.06%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master     #256      +/-   ##
============================================
+ Coverage     78.61%   78.67%   +0.06%     
- Complexity      159      164       +5     
============================================
  Files            91       91              
  Lines          3273     3273              
  Branches        464      464              
============================================
+ Hits           2573     2575       +2     
+ Misses          460      454       -6     
- Partials        240      244       +4     

Impacted Files	Coverage Δ	Complexity Δ
...icsearch/alerting/action/AcknowledgeAlertAction.kt	66.66% <100.00%> (ø)	0.00 <0.00> (ø)
...csearch/alerting/action/DeleteDestinationAction.kt	66.66% <100.00%> (ø)	0.00 <0.00> (ø)
...asticsearch/alerting/action/DeleteMonitorAction.kt	66.66% <100.00%> (ø)	0.00 <0.00> (ø)
...sticsearch/alerting/action/ExecuteMonitorAction.kt	66.66% <100.00%> (ø)	0.00 <0.00> (ø)
...relasticsearch/alerting/action/GetMonitorAction.kt	66.66% <100.00%> (ø)	0.00 <0.00> (ø)
...icsearch/alerting/action/IndexDestinationAction.kt	66.66% <100.00%> (ø)	0.00 <0.00> (ø)
...lasticsearch/alerting/action/IndexMonitorAction.kt	66.66% <100.00%> (ø)	0.00 <0.00> (ø)
...asticsearch/alerting/action/SearchMonitorAction.kt	66.66% <100.00%> (ø)	0.00 <0.00> (ø)
...roforelasticsearch/alerting/alerts/AlertIndices.kt	66.14% <0.00%> (-9.45%)	0.00% <0.00%> (ø%)
...e/action/node/ScheduledJobsStatsTransportAction.kt	75.00% <0.00%> (ø)	8.00% <0.00%> (ø%)
... and 3 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 67b5598...9fed9b6. Read the comment docs.