New command: inspect-module

[radeksimko]

Closes #225

This aims to provide another way of debugging complex hierarchies, which is a problem people tend to run into.

Usage

$ terraform-ls inspect-module .

2 root modules found in total at /var/workspace/tf-test/github
 - /var/workspace/tf-test/github
   - 3 errors:
     - terraform version 0.11.0 is not supported in schema storage (supported: >= 0.12.0)
     - terraform version 0.11.0 is not supported in parser (supported: >= 0.12.0)
     - cannot update schema as schema cache is not available
   - 1 modules
     - nested-root (./nested-root)
 - /var/workspace/tf-test/github/nested-root
   - 0 errors
   - 0 modules

[ghost]

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