Add --no-config-search option to cli

[Jason3S]

The original idea, was the local config has more knowledge of the files being checked than a global config.

This allows for things like specifying the language.

For example:

cspell.config.yaml - language: en
i18n/de/cspell.config.yaml - language: de
i18n/de/README.md

At the root:

• cspell "**/*.md", would use German when spellchecking i18n/de/README.md.

But by automatically turning on noConfigSearch, the following would break:

• cspell --config cspell.config.yaml "**/*.md" would use English instead of German.

Even though both invocations of cspell use cspell.config.yaml, the behavior would be different.

I propose added two new options: --no-config-search and --config-root.

• --no-config-search would just enabled adding the behavior to the command line.
• --stop-config-search-at <dir> would tell the spellchecker to not look further up the hierarchy than the specified <dir>. It also makes sense that more than one stop could be wanted.

Originally posted by @Jason3S in #4750 (comment)