Update @types/node to v10.12.18

[gasper-az]

Description

• Update NodeJS version for supporting RegExp related features natively, like lookBehind assertions and named capture groups. These changes are supported since the v.10.3.0 version, but we update the project's version to the v10.15.0 (v.10.12.18 in typescript) as it is the current LTS.

A PR for supporting these changes was also created in Recognizers-text project (PR#1069)

• Update the tsconfig.json files to target ESNext as Node JS v.10 has good native support for most ESNext language built-ins, which will reduce file size and improve the debugging experience and performance.

Specific Changes

• Update libraries/botbuilder-ai/package.json @types/node to ^10.12.18.
• Update libraries/botbuilder-azure/package.json @types/node to ^10.12.18.
• Update libraries/botbuilder-dialogs/package.json @types/node to ^10.12.18.
• Update libraries/botbuilder/package.json @types/node to ^10.12.18.
• Update libraries/botbuilder-connector/package.json @types/node to ^10.12.18.
• Update libraries/botbuilder-schema/package.json @types/node to ^10.12.18.
• Update transcript/package.json @types/node to ^10.12.18.
• Reload package-lock.json.
• Update libraries/botbuilder/tsconfig.json target to ESNext
• Update libraries/botbuilder-ai/tsconfig.json target to ESNext
• Update libraries/botbuilder-applicationinsights/tsconfig.json target to ESNext
• Update libraries/botbuilder-azure/tsconfig.json target to ESNext
• Update libraries/botbuilder-core/tsconfig.json target to ESNext
• Update libraries/botbuilder-dialogs/tsconfig.json target to ESNext
• Update libraries/botframework-config/tsconfig.json target to ESNext
• Update libraries/botframework-connector/tsconfig.json target to ESNext
• Update libraries/botframework-schema/tsconfig.json target to ESNext

[coveralls]

Pull Request Test Coverage Report for Build 2587

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.007%) to 82.205%

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Totals
Change from base Build #1799:	-0.007%
Covered Lines:	2703
Relevant Lines:	3163

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💛 - Coveralls