* scm/display-lily.scm: add a parser argument to display methods,

* scm/display-lily.scm: add a parser argument to display methods,
instead of using a *parser* special variable.

* scm/define-music-display-methods.scm: add a parser argument to
display methods. Update the methods for \melisma, \melismaEnd,
\breathe, \tempo, \partial.

* input/no-notation/display-lily-tests.ly: update the test
utilities according to the changes in display-lily.scm