merge package template from arlac77/npm-package-template

[arlac77]

package.json

• chore(devDependencies): update rollup@^0.55.1 from template

[codecov-io]

Codecov Report

Merging #83 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #83   +/-   ##
=======================================
  Coverage   73.88%   73.88%           
=======================================
  Files           3        3           
  Lines         134      134           
=======================================
  Hits           99       99           
  Misses         35       35

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[coveralls]

Coverage remained the same at 71.333% when pulling c7c511b on template-sync-1 into 92c3053 on master.

[coveralls]

Coverage remained the same at 71.333% when pulling c7c511b on template-sync-1 into 92c3053 on master.