Use dynamic OS-detected path separator in place of literal OS-specific separator

[armanrahman22]

Link to original issue on forked repo: inclusive-dev-tools#11

Problem Statement

In the C:\_wrk\inclusive-dev-tools\woke\pkg\ignore\ignore_test.go file, run-time detection of the host OS is used to permit the tests to run/pass cross-platform as shown in the following excerpt:

	assert.False(t, i.Match("not/foo"))
	assert.True(t, i.Match("my/files/file1"))
	assert.False(t, i.Match("my/files"))

	if runtime.GOOS == "windows" {
		assert.False(t, i.Match(`not\foo`))
		assert.True(t, i.Match(`my\files\file1`))
		assert.False(t, i.Match(`my\files`))
	}

Long-term maintainability of the test could be improved by expressing the test paths not as string-literals differing only by their path-separator character but instead leveraging os.PathSeparator (from the os package) and filepath (from the path/filepath package). See https://stackoverflow.com/questions/9371031/how-do-i-create-crossplatform-file-paths-in-go for guidance.

Acceptance Criteria

• ignore_test.go updated to use the dynamically-interpreted path-separator character in lieu of explicit "/" or "\"