Extracted the TTY detection out of detectColors() so it can be used
independently to auto-disable features that only make sense in an
interactive terminal (progress indicators, line-rewriting output).
detectColors() now builds on top of detectTerminal() and adds the
NO_COLOR/FORCE_COLOR environment logic on top.

Adds a shared ncs.php in the hook directory that disables the
commented_out_function fixer and passes it to ecs via --config-file.
Project-level ncs.php still applies and takes precedence.

Requires nette/coding-standard with --config-file support.

The option specifies an extra config file that is merged on top of the
auto-discovered ncs.php / ncs.xml. The tool is identified by extension:
.php for PHP CS Fixer, .xml for PHP_CodeSniffer. May be given twice
to configure both. Auto-discovery still runs; CLI values take precedence.

Sniffer now passes phpcs a temporary wrapper ruleset that always
references the version preset, plus the project's ncs.xml when present.
This means ncs.xml can contain only overrides without explicitly
including <rule ref="$presets/phpXX.xml"/>. Existing files keeping
that reference continue to work (phpcs merges duplicate refs).

As a side effect, the project's ncs.xml is no longer modified in place
during the run; the $presets/ substitution happens in a temp copy.