Remove cas-security-dynamic-service-resolver

[kakawait]

Use spring-cas-security-extension instead

fixes #35

[codecov]

Codecov Report

Merging #104 into develop will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             develop     #104   +/-   ##
==========================================
  Coverage      82.89%   82.89%           
  Complexity       117      117           
==========================================
  Files             23       23           
  Lines            608      608           
  Branches          77       77           
==========================================
  Hits             504      504           
  Misses            78       78           
  Partials          26       26

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