[Enhancement] Search Entire Commit Message on Demand; fixes #337

[kevinmatthes]

This PR fixes #337.

[github-actions]

Filename                               Stmts    Miss  Cover    Missing
-----------------------------------  -------  ------  -------  ---------------------------------------
src/changelog/comment_changes.rs         156     156  0.00%    102-384
src/changelog/fragment.rs                 56      35  37.50%   100-162
src/changelog/ronlog.rs                  120      72  40.00%   48-239
src/application.rs                        42      42  0.00%    100-172
src/cffreference.rs                       72       0  100.00%
src/increment_version.rs                  90      19  78.89%   123-124, 130-137, 150-155, 216, 231-240
src/macros.rs                             17       0  100.00%
src/running.rs                             4       0  100.00%
src/version.rs                            47       0  100.00%
src/pattern/buffer.rs                     21       0  100.00%
src/pattern/io_processor.rs               17      17  0.00%    72-155
src/pattern/writer.rs                     75      30  60.00%   133-152, 187-197, 229-257
src/traits/append_as_line.rs               9       0  100.00%
src/traits/colour_message.rs               8       0  100.00%
src/traits/convert_buffer.rs              21       0  100.00%
src/traits/prefer.rs                       3       0  100.00%
src/traits/read_file.rs                   30      19  36.67%   54-55, 69-70, 78-94, 105-115
src/traits/rusty_object_notation.rs        8       0  100.00%
src/traits/to_stderr.rs                    4       0  100.00%
src/graphing/agd.rs                      156       0  100.00%
src/graphing/graph.rs                    146       0  100.00%
TOTAL                                   1102     390  64.61%

[kevinmatthes]

@AmmarAbouZor

Just for completeness, I commented the most important aspects of my solution. In general, it matches your feature request exactly -- except for the renamed trigger option. I will release these changes within the next two days.

[AmmarAbouZor]

@kevinmatthes
This looks great very thanks for implementing it 🥇