Feature: Fix problems regarding zero-width and no-print.

Feature: Fix problems regarding zero-width and no-print.

This is part of commits:
  - e6cfc5b655aacd22c560a4eb04904f46dc11e761
  - 8f54a1e01d5533e63a38f2849670b20118d18605

Add additional types of checks to properly check the leading combining/placeholder.
Once again the editors arbitrarily added spaces in from of combining and joiners despite when I want to literally add a combining and joiner without a space.
Use `sed` and `utf8` to fix the editor caused problem:

```sh
sed -i -e "s|^ ́|$(utf8 -cB U+0301)|g" objects/*-combining_read.txt strings/*-combining_read.txt
```

I then had to update the tests to properly handle the case.