Add pivot ability to Tick Tick Boom tower

[dandgerson]

By issue #242 @warriorjs/tower-tick-tick-boom warrior haven't got the "pivot" ability and bashing 'backward' forcedly
#242

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@04e8657). Click here to learn what that means.
The diff coverage is 47.05%.

@@            Coverage Diff            @@
##             master     #243   +/-   ##
=========================================
  Coverage          ?   92.39%           
=========================================
  Files             ?       92           
  Lines             ?     1091           
  Branches          ?      165           
=========================================
  Hits              ?     1008           
  Misses            ?       68           
  Partials          ?       15           

Impacted Files	Coverage Δ
packages/warriorjs-cli/src/Game.js	51.02% <0.00%> (ø)
packages/warriorjs-cli/src/ui/printLevelReport.js	100.00% <ø> (ø)
packages/warriorjs-core/src/runLevel.js	100.00% <ø> (ø)
...riorjs-helper-get-level-score/src/getClearBonus.js	100.00% <ø> (ø)
...rriorjs-helper-get-level-score/src/getLastEvent.js	100.00% <ø> (ø)
...elper-get-level-score/src/getRemainingTimeBonus.js	100.00% <ø> (ø)
...rriorjs-helper-get-level-score/src/getTurnCount.js	100.00% <ø> (ø)
...orjs-helper-get-level-score/src/getWarriorScore.js	100.00% <ø> (ø)
...rriorjs-helper-get-level-score/src/isFloorClear.js	100.00% <ø> (ø)
packages/warriorjs-cli/src/Profile.js	96.39% <100.00%> (ø)
... and 1 more

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[olistic]

Hello @dandgerson, just wanted to thank you for your contribution, and let you know that it didn't go by unnoticed. I'll be a bit busy for a couple more days, and then I'll review this.

[dandgerson]

also, i think, if the Warrior have been attacked from 'backward' he must recieve more damage than always