Add fet custom pattern

[LuighiV]

Add possibility to create any patter with an array of fets and do an automatic routing.

Based on custom patterning implemented for #50

Note: If required we can remove commits from BJT just to enclose for custom pattern

[Nimok15]

line 623 of [469b72e], We are taking the base geometry for the new emitter port. This could cause layer/port mismatch.

[LuighiV]

line 623 of [469b72e], We are taking the base geometry for the new emitter port. This could cause layer/port mismatch.

Hi @Nimok15, thanks for reviewing it. I've checked it and, indeed, it is using the base port as reference. I don't think it will have an issue with routing because the destination will move it to an absolute position, and layers are the same for all of them. However, I agree that it's not clean and is better using the right reference for the emitter. Thanks for noticing.

By the way, I couldn't see your suggested change in the code itself, but I know what you meant and going to update the branch with a fix.

Thanks,
Luighi

[LuighiV]

Hi @Nimok15
I think I've added the requested change, can you take a look on it please?
As this PR is built on PR #50 I've added the correction to both.

Thanks,
Luighi

[Nimok15]

Hi @LuighiV, thanks for updating it. I will review #50 and get back to you.

Thanks,
Nimish