[request] check application source for missing extensions

[kellymears]

Agreement

• This is not a duplicate of an existing issue
• I have read the guidelines for Contributing to Roots Projects
• This is not a personal support request that should be posted on the Roots Discourse community

The feature

When running bud doctor, check application source and config for missing extensions.

Examples:

• Application includes .scss files but @roots/bud-sass is not resolvable and there is no handler for .scss files registered to bud.build.rules otherwise.
• Application calls bud.imagemin in config file but @roots/bud-imagemin is not resolvable and there is no function registered to bud.imagemin otherwise.

Use case

No response

Notes

No response

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