Explicitly check for "scope=all" in replacement file
Prepare to allow have everything in the Replacement file, even scanner strings.

Allow Replacement class to accept a scan token and identify the type of token in Style.
Update ScannerTests to use ReplacerEngine, i.e. include in ReplacementFile.
Change Replacement to hold scanner token so Replacement now can handle all needs. There is no separate ScannerEngine. All is handled by ReplacerEngine. Add some high level tests.
Rename SearchAndReplaceTokens to ApplyReplacements since that now scans and replaces tokens
Add ScannerFS Control Option, tests and update README.md.

Bump to version 0.6.3