Consistent control window layout

We rearranged some options in the following control windows to make surfacing tools more consistent with each other.

• Rail Surface tool
• Square tool
• N-sided tool
• Surface Fillet tool
• Symmetric Fillet tool
• Freeform Blend tool
• Profile Blend tool
• Fillet Flange tool
• Tube Flange tool
• Tubular Offset tool
• Panel Gap tool
• Multi-surface Draft

Options in these control window are now arranged following this layout:

• Tool-specific controls
• Explicit Control Options
• Flow Control/Range
• Surface Structure
• Control options

Continuity types renamed

We renamed the continuity types in the following tools:

• Align tool
• Rail Surface tool
• Square tool
• Freeform Blend tool
• Profile Blend tool
• Fillet Flange tool
• Tube Flange tool
• Tubular Offset tool
• Surface Fillet tool
• Symmetric Fillet tool