Increase datacollector initial communication timeout

[smadala]

Description

• Increase datacollector initial communication timeout to 30 sec.
• Provide environment variable to config datacollector initial communication timeout.
• Add more logging(print whole stacktrace, and update messagelevel).

Related issue

#1354

[singhsarab]

                EqtTrace.Info(@"TestRequestSender: VersionCheck Succeeded, NegotiatedVersion = {0}", this.protocolVersion);

Remove these, as this would already have been logged.

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Refers to: src/Microsoft.TestPlatform.CommunicationUtilities/TestRequestSender.cs:169 in 1980aa0. [](commit_id = 1980aa0, deletion_comment = False)

[singhsarab]

[mayankbansal018]

There must be a similar utility method for ProxyExecutionManager, can you please check it, & merge the two.