feat: add flag for reading specified puzzle part #28
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Add an optional
--part
flag that accepts values1
or2
in theread
subcommand for displaying/reading the specified part of the puzzle. If the flag is not specified, this defaults to displaying the entire puzzle.This also adds some display consistencies. When output includes part 1 puzzle, the
--- Part One ---
subheader is included in the output. Additionally, if only displaying part 2 puzzle, the--- Day Foo: Bar ---
header is included in the output.Fixes: #27