feature(microservices): add multiple proto to grpc config

[AlexDaSoul]

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
[x] 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: #1640

grpcOptions: {
    transport: Transport.GRPC,
    options: {
        url: 'url',
        package: 'name.package',
        protoPath: 'alone.proto'
    }
}

What is the new behavior?

grpcOptions: {
    transport: Transport.GRPC,
    options: {
        url: 'url',
        package: 'name.package',
        protoPath: [
        'one.proto',
        'two.proto',
        'any.proto'
        ]
    }
}

Does this PR introduce a breaking change?

[ ] Yes
[x] No

[coveralls]

Pull Request Test Coverage Report for Build 1987

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 93.696%

---

Totals
Change from base Build 1974:	0.0%
Covered Lines:	2996
Relevant Lines:	3141

---

💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 1987

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 93.696%

---

Totals
Change from base Build 1974:	0.0%
Covered Lines:	2996
Relevant Lines:	3141

---

💛 - Coveralls

[kamilmysliwiec]

I don't think that this PR actually solves #1640. Let's track this here #1733

[AlexDaSoul]

I don't think that this PR actually solves #1640. Let's track this here #1733

#1733 have a flaw - this works only for decorations, but not for the client. Need https://github.com/nestjs/nest/pull/1774/files#diff-961699c6f9192f31ba318b6ec1915084 for correctly work

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.