Add control-dsl-0.2 to LTS-12

[Atry]

Checklist for adding a package:

• specified the Stackage LTS version in the summary

• On your own machine, in a new directory, you have successfully run the following set of commands (replace $package with the name of the package that is submitted, $version with the version of the package you want to get into the LTS series, and $lts with the desired LTS series):

  stack unpack control-dsl-0.2.1.1
  cd control-dsl-0.2.1.1
  stack init --resolver lts-12
  stack build --haddock --test --bench --no-run-benchmarks
  

• You're using the latest version of Stack. Please try running stack upgrade and rerunning your commands. If it still fails, please include the output of stack --version in this issue.

[alexeyzab]

Added in lts-12.13: https://www.stackage.org/lts-12.13/package/control-dsl-0.2.1.1