Report results of a test run in the status bar

[zabil]

Whenever specifications are run using commands like "Run All Specifications", "Run Scenario" etc from command palette or the code lenses.

Summarize the as follows

• 22/P, 0/F, 0/S where 22 is the number of scenarios passed, 0 is the number of scenarios failed, 0 is the number of scenarios skipped
• Colorize 22/P as green 0/F as red and 0/s as yellow

On clicking the status bar it must open the command palette with the options

• View report
• Re-run tests
• Re-run failed tests.

[Apoorva-GA]

Fix should be available in gauge and gauge-vscode nightly >= 12/02/18

[sswaroopgupta]

Test cases

• Status bar displays the information. Instead of P,F and s it shows a tickmark, crossmark and an exclamation mark.
• Clicking the status bar opens the command palette with the mentioned options
• View report opens the report in the browser
• Re-run tests and Re-run failed tests work as expected

OS

• Windows
• OSX
• Linux

Issues

• Once an execution starts the previous status should get cleared from the status bar - Once an execution starts the previous status should get cleared from the status bar. #139
• Failed to read execution status - Failed to read execution status gauge-python#29