Add regex_flags parameter to strings replace_re functions

[davidwendt]

Closes #9845

Adds a cudf::strings::regex_flags parameter to the cudf::strings::replace_re functions so the matching logic will be the same as for cudf::strings::contains_re which already has this parameter.

This is a breaking change since it adds this new parameter and changes the default behavior. The previous default behavior is equivalent to specifying the regex_flags::MULTILINE flag now to be consistent with the default behavior of contains_re.

[codecov]

Codecov Report

Merging #9878 (2906188) into branch-22.02 (967a333) will decrease coverage by 0.06%.
The diff coverage is n/a.

❗ Current head 2906188 differs from pull request most recent head d4ee87a. Consider uploading reports for the commit d4ee87a to get more accurate results

@@               Coverage Diff                @@
##           branch-22.02    #9878      +/-   ##
================================================
- Coverage         10.49%   10.42%   -0.07%     
================================================
  Files               119      119              
  Lines             20305    20473     +168     
================================================
+ Hits               2130     2134       +4     
- Misses            18175    18339     +164     

Impacted Files	Coverage Δ
python/dask_cudf/dask_cudf/sorting.py	92.30% <0.00%> (-0.61%)	⬇️
python/cudf/cudf/__init__.py	0.00% <0.00%> (ø)
python/cudf/cudf/core/frame.py	0.00% <0.00%> (ø)
python/cudf/cudf/core/index.py	0.00% <0.00%> (ø)
python/cudf/cudf/io/parquet.py	0.00% <0.00%> (ø)
python/cudf/cudf/core/series.py	0.00% <0.00%> (ø)
python/cudf/cudf/utils/utils.py	0.00% <0.00%> (ø)
python/cudf/cudf/utils/ioutils.py	0.00% <0.00%> (ø)
python/cudf/cudf/core/dataframe.py	0.00% <0.00%> (ø)
python/cudf/cudf/core/multiindex.py	0.00% <0.00%> (ø)
... and 9 more

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[bdice]

Really nice work. LGTM.

[hyperbolic2346]

Looks great. Thanks!

[davidwendt]

@gpucibot merge