Fix alias adding in Dependency Manager if no dependency yet

[chasefleming]

Closes #1800

Description

Entering an alias was failing if the dependency didn't exist in flow.json yet. Changes the order of operations to add the dependency to the state before doing any additional tasks.

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For contributor use:

• Targeted PR against master branch
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work
• Code follows the standards mentioned here
• Updated relevant documentation
• Re-reviewed Files changed in the Github PR explorer
• Added appropriate labels

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 33.33333% with 4 lines in your changes missing coverage. Please review.

Project coverage is 28.47%. Comparing base (ba90dd8) to head (75c3674).

Files with missing lines	Patch %	Lines
internal/dependencymanager/dependencyinstaller.go	33.33%	3 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1836   +/-   ##
=======================================
  Coverage   28.47%   28.47%           
=======================================
  Files          95       95           
  Lines        6490     6490           
=======================================
  Hits         1848     1848           
  Misses       4462     4462           
  Partials      180      180           

Flag	Coverage Δ
unittests	28.47% <33.33%> (ø)

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