Add optional functionality to display source file locations in `output=location `instead of targets.

Added an additional flag `[no]incompatible_display_source_file_location` to override the default behaviour (when false) to print the source file targets instead of their locations. Additionally, the  `relative_locations` flag will similarly display the relative location of the source file.

This https://github.com/bazelbuild/bazel/issues/12322 describes the issue and potential migration recipes.

Example of new configurations for blaze query location=output with `incompatible_display_source_file_location` and `relative_locations` flags below:

1. Default behaviour: Displays absolute paths to both BUILD and source file
```
$ bazel query blazetest:main.py --output=location --incompatible_display_source_file_location
/home/tanzhengwei/blazetest/BUILD:1:10: source file /home/tanzhengwei/blazetest/main.py:1:1
```

2. Displays relative paths to both BUILD and source file
```
$ bazel query blazetest:main.py --output=location --relative_locations --incompatible_display_source_file_location
blazetest/BUILD:1:10: source file blazetest/main.py:1:1
```

3. Displays relative path to BUILD file and source file target
```
$ bazel query blazetest:main.py --output=location --relative_locations --noincompatible_display_source_file_location
blazetest/BUILD:1:10: source file //blazetest:main.py
```

4. Displays absolute path to BUILD file and source file target
```
$ bazel query blazetest:main.py --output=location --noincompatible_display_source_file_location
/home/tanzhengwei/blazetest/BUILD:1:10: source file //blazetest:main.py
```

RELNOTES: Added flag `incompatible_display_source_file_location` for `blaze query location=output` to print the location of line 1 of the actual source files instead of the source file targets. Provides a solution to https://github.com/bazelbuild/bazel/issues/8900.
PiperOrigin-RevId: 338240601