Add verbose boolean to option

[Nol-go]

Description

As a dev using this plugin, I would benefit a verbosity parameter that logs messages like the existing

vite:istanbul> Sourcemaps was automatically enabled for code coverage to be accurate.
 To hide this message set build.sourcemap to true, 'inline' or 'hidden'.

that would tell me if instrumentation is being done or not and possibly also telling why, as it would allow me to not loose time debugging my configuration.

Suggested solution

example:

istanbulPlugin({
    include: 'src/*',
    exclude: ['node_modules', 'test/'],
    cypress: true,
    requireEnv: true,
    verbose: true
}),

would give

$ npx vite
vite:istanbul> Not instrumenting the code because CYPRESS_COVERAGE is not set.
 To hide this message, unset the istanbul verbose option

Alternative

No response

Additional context

Duplicate Issue avoidance:
I've searched all issues (closed and open) for words such as "verbose" or "verbosity".

Validations

• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

[Nol-go]

oops

[iFaxity]

Hi @Nol-go,

Totally agree, will add a PR with a verbose option to log messages as well as more messages for a reason of not running the plugin due to the configuration.

[Nol-go]

This coups also ne usefull during devlopment of features or bug resolutions, as I experienced with my PR, things like getting chunk id's in different colors depending on instrumentation.