monoClust 1.2.1

Bugs and Improvements

• MonoClus(): default value for distmethod argument is now NULL so that
  the it can be set to Euclidean (when cir.var is not set) or Gower distance
  (when cir.var is set).
• Fix typos and a trailing space in the warning message of as_MonoClust() function.
• Small improvement in how ncores argument is processed in perm.test() and
  cv.test(). It did not have a problem before but the improvement helps remove
  errors in Github Actions CI in Windows environment.
• \@fig tags in the vignette is removed.
• URL to lifecycle badge in README.md is updated.
• Start unit test component with the first test is for as_MonoClust() function.