feat(edit): Add revup edit command with safety features

[ashelly]

Interactive topic editing that allows editing commits within a topic.

Topic: edit_command
relative: stack_show

[ashelly]

Reviews in this chain:
└#18 Feature: common utils for end-to-end tests
　├#10 Feature: Tree command to Show Stack
　│├#19 Feature: Tests for tree (stack show) command
　│└#9 feat(edit): Add revup edit command with safety features
　│　└#12 test(edit): Add tests for edit safety features
　│　　└#21 Docs: Describe new features
　└#3 Feature: Revup commit gains --topic and --relative to pre-populate commit message
　　└#13 feat(utils): Create relative_utils module for topic relationship management
　　　├#14 Feature: amend --relative fixes stack
　　　│├#17 Tests(amend): Tests for amend behavior, especially --relative
　　　│└#4 Feature: Revup commit gains --draft flag
　　　│　└#20 Feature: tests for the --draft flag
　　　└#15 feat(restack): Add --as argument for bulk topic reordering
　　　　└#16 test(restack): Add tests for --as argument and GCA algorithm

[ashelly]

#	head	base	diff	date	summary
0	aa6b0449	48c32e5e	diff	Feb 3 16:03 PM	4 files changed, 531 insertions(+)
1	dac4a30e	beb2ad03	diff	Feb 3 18:05 PM	3 files changed, 379 insertions(+), 4 deletions(-)
2	e684d064	b8f427fd	rebase	Feb 4 17:36 PM	0 files changed
3	e684d064	b8f427fd	diff	Feb 4 17:37 PM	0 files changed
4	902c8886	e47497e1	rebase	Feb 5 12:18 PM	0 files changed
5	1a6bd67d	420ea432	rebase	Feb 5 14:08 PM	0 files changed