fix duplicate route order

[nazoking]

Describe the PR

#968 fixes the priority of duplicate routes in alphabetical order in the file path.
But that is not the priority we need in the field.

1. If more than one is specified in the -dir option, give priority to the directory at the beginning of the option.
2. Prioritize the source of the dependency over the library of the dependency.

Our project consists of creating a new site by referring to the source of common parts.

In many cases, we believe that this priority specification will work as ideal.

[codecov]

Codecov Report

Attention: Patch coverage is 88.23529% with 2 lines in your changes missing coverage. Please review.

Project coverage is 92.58%. Comparing base (523e046) to head (5c5431c).
Report is 275 commits behind head on master.

Files with missing lines	Patch %	Lines
parser.go	84.61%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #994      +/-   ##
==========================================
+ Coverage   92.57%   92.58%   +0.01%     
==========================================
  Files           8        8              
  Lines        1925     1928       +3     
==========================================
+ Hits         1782     1785       +3     
  Misses         80       80              
  Partials       63       63              

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