feat(core): expose each option to get and resolve methods

[kamilmysliwiec]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/nestjs/nest/blob/master/CONTRIBUTING.md
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

• Yes
• No

Other information

[coveralls]

Pull Request Test Coverage Report for Build 9df5ad94-c45f-4431-b6d6-42327622d71e

• 35 of 41 (85.37%) changed or added relevant lines in 10 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.05%) to 93.736%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
packages/core/injector/module.ts	0	1	0.0%
packages/core/injector/abstract-instance-resolver.ts	20	25	80.0%

Totals
Change from base Build 9368760d-44c3-4ebb-9e88-2f8c5508d382:	-0.05%
Covered Lines:	6135
Relevant Lines:	6545

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💛 - Coveralls