[BUG] Refactor line terminator handling code

[NVnavkumar]

Describe the bug
Once rapidsai/cudf#11979 is resolved using the fix described here, the regular expression transpiler code will need to updated for new handling of $, \z and \Z.

[NVnavkumar]

rapidsai/cudf#12181 is now merged

[andygrove]

I installed spark-rapids-jni with the cuDF changes and I see these failures in the scala tests in 23.02

- string anchors - find *** FAILED ***
  javaPattern[7]=test\z, cudfPattern=test$, input='test\n', cpu=false, gpu=true (RegularExpressionTranspilerSuite.scala:840)
- line anchors - replace *** FAILED ***
  javaPattern[4]=test\z, cudfPattern=test$, input='test\n', cpu=test\n, gpu=_RE\PLACE_\n (RegularExpressionTranspilerSuite.scala:867)
- string anchors - replace *** FAILED ***
  javaPattern[1]=test\z, cudfPattern=test$, input='test\n', cpu=test\n, gpu=_RE\PLACE_\n (RegularExpressionTranspilerSuite.scala:867)
- line anchor $ - find *** FAILED ***
  javaPattern[0]=a$, cudfPattern=a(?:[\n\r\u0085\u2028\u2029]|\r\n)?$, input='a\u0085\n', cpu=false, gpu=true (RegularExpressionTranspilerSuite.scala:840)
- string anchor \Z - find *** FAILED ***
  javaPattern[0]=a\Z, cudfPattern=a(?:[\n\r\u0085\u2028\u2029]|\r\n)?$, input='a\u0085\n', cpu=false, gpu=true (RegularExpressionTranspilerSuite.scala:840)

Also, this integration test fails:

regexp_test.py::test_re_replace_anchors