Merge pull request #5 from nrivard/InterruptsV2

Interrupts v2

Exposes some initializers for teseting purposes in other projects

README typo fixes

Converted AddressingMode resolution to a fixed array

This also greatly sped up execution, though not quite as much as mnemonic resolution. Also converted integer mapping in `arithmeticFunction` to use `lazy` which strangely sped that process up as well.

made `Mnemonic` `CaseIterable`

Removed unnecessary Combine import

Added `peek()` function to inspect the next upcoming instruction

Also added a `disassembled` var to `Instruction` so we can show a user friendly version without the commented opcode cruft that is nicer on the console.

Made `IntegerSyntaxParadigm` `RawRepresentable` so it can be used in …

…`@AppStorage` at higher layers

Moved stack pointer logic to `Registers` and made API more convenient

Exposed some stack details for visualization