Log Top Level Npm Packages in Diagnostics Window

[mjbvz]

Issue #1116

Bug

To investigate perf issues with Typescript/Salsa, we would like to be able to request a list of installed node modules when a user reports a performance issue.

Fix

Adds installed node module information to the Diagnostic window. If a user is running into perf issues, we can request that they provide the output of the Diagnostics window to us in order to help with out investigations.

Testing

Tested with a few different project/solution types

Here's an example for a solution with two express projects:

Use Ctrl-C to copy contents

Projects:
    Project: ExpressApp17\ExpressApp17.njsproj
        Kind: Node.js
        StartupFile: C:\Users\matb.REDMOND\documents\visual studio 2015\Projects\ExpressApp17\ExpressApp17\bin\www
        WorkingDirectory: .
        PublishUrl: <undefined>
        SearchPath: <undefined>
        CommandLineArguments: <undefined>
        Analysis Log:
        Analysis loading...
        Top Level Node Packages (9):
            body-parser 1.8.4
            cookie-parser 1.3.5
            debug 2.0.0
            express 4.9.8
            jade 1.6.0
            mocha 2.5.3
            morgan 1.3.2
            serve-favicon 2.1.7
            stylus 0.42.3

        Project Info:
            .js (included in project):
                Number of Files: 4
                Average Line Count: 22
                Max Line Count: 61
            .d.ts (included in project):
                Number of Files: 14
                Average Line Count: 418
                Max Line Count: 2557
            .js (excluded from project):
                Number of Files: 641
                Average Line Count: 194
                Max Line Count: 15226
            .html (excluded from project):
                Number of Files: 6
                Average Line Count: 106
                Max Line Count: 324

    Project: ExpressApp1\ExpressApp1.njsproj
        Kind: Node.js
        StartupFile: C:\Users\matb.REDMOND\documents\visual studio 2015\Projects\ExpressApp17\ExpressApp1\bin\www
        WorkingDirectory: .
        PublishUrl: <undefined>
        SearchPath: <undefined>
        CommandLineArguments: <undefined>
        Analysis Log:
        Analysis loading...
        Top Level Node Packages (8):
            body-parser 1.8.4
            cookie-parser 1.3.5
            debug 2.0.0
            express 4.9.8
            jade 1.6.0
            morgan 1.3.2
            serve-favicon 2.1.7
            stylus 0.42.3

        Project Info:
            .js (included in project):
                Number of Files: 3
                Average Line Count: 26
                Max Line Count: 61
            .d.ts (included in project):
                Number of Files: 13
                Average Line Count: 432
                Max Line Count: 2557
            .js (excluded from project):
                Number of Files: 430
                Average Line Count: 179
                Max Line Count: 15226
            .html (excluded from project):
                Number of Files: 3
                Average Line Count: 88
                Max Line Count: 188

closes #1116

[mousetraps]

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