Add help buttons to the widget that don't have them

[FLO-2DJJ]

• [x] Grid Tools
• [x] Pre-processing Tools
• [x] Profile Tool
• [x] Cross Section Editor
• [ ] Boundary Conditions Editor
• [x] Initial Conditions Editor
• [x] Rain Editor
• [x] Schematized Channels Editor
• [x] Structures Editor
• [ ] Street Editor
• [x] Floodplain Cross Sections Editor
• [x] Infiltration Editor
• [x] Storm Drain Editor
• [x] Levees and Breach Editor
• [x] Multiple Channels Editor

[FLO-2DKaren]

Don't bother with the street editor.

[FLO-2DJJ]

Don't bother with the street editor.

OK