Move 9-pin header inwards

[cefn]

There could be a benefit to moving the 9-pin header inwards for all builds. Need to check if there's any exception to this. Currently the Memory Game and Conductive Keyboard builds all benefit from access to the extra pins from the outside. Might be a trend.

On the plus side, by doing this extra step in the build, learners get to find out that components can be moved horizontally for convenience without changing the circuit. On the negative side, there's a variation compared to Blink which could introduce problems (especially since the reset pull-up resistor also needs to be moved and might be replaced incorrectly). This could be handled in the instructions, by suggesting a Blink verification after moving the components?

Benefits:

• Builds have fewer variations compared to the Blink circuit
• Reset button actually more accessible/usable in protected build

Costs

• Protected Shrimp
  • some clear space either to the left or the right of the header is needed for the button
  • the capacitor positioning for crystal caps and decoupling caps could be a blocker
• Vector Graphics
  • a lot of rework will be needed, especially to handle re-routing of Rainbow cables.