#572 mmgisAPI.getActiveTools

[tariqksoliman]

Closes #572

Adds:

getActiveTools()

This function returns an object with the currently active tool and the name of the active tool in addition to any active separated tools (such as the Identifier and Legend Tools).

The following is an example of how to call the getActiveTools function:

window.mmgisAPI.getActiveTools();
/* returns (example)
{
  activeToolNames: ['InfoTool', 'LegendTool', 'IdentifierTool']
  activeTools: [
    {activeTool: {…}, activeToolName: 'InfoTool'},
    {activeTool: {…}, activeToolName: 'LegendTool'},
    {activeTool: {…}, activeToolName: 'IdentifierTool'}
  ]
}
*/

Also colors the separated Identifier Button to indicate to users that it's active.