Revamp TLE Function Counts telemetry, fixes #41

[StephenWeatherford]

1. "Languages" -> "Programming Languages" (change suggested by vscode Insiders)
2. Add more info to specific errors so I can mine it for telemetry
3. Remove old TLE Function Counts telemetry in favor of new one which has a consistent signature
4. Also add info about which functions we don't recognize, and which are using different arguments than we're expecting (to help us know when our function signature info might be out of date)

Example telemetry properties:

functionCounts: "{"parameters":7,"parameters(1)":6,"resourceGroup":2,"resourceGroup(0)":1,"variables":5,"variables(1)":5,"concat":2,"concat(2)":1,"parameters(2)":1,"resourceGroup(2)":1,"somenewfunctionwedontknowabout":1,"somenewfunctionwedontknowabout(0)":1,"concat(4)":1}"

incorrectArgs: "["parameters(2)[1..1]","resourceGroup(2)[0..0]"]"

unrecognized: "["somenewfunctionwedontknowabout"]"