Add image coalignment module

[wtbarnes]

This PR adds a coalignment module originally in sunpy/image/coalignment.py. This addresses sunpy/sunpy#5425.

I've done my best to include the commit history of the coalignment code from sunpy here. Even if we squash merge, we should still include the text of these commits.

[pep8speaks]

Hello @wtbarnes! Thanks for updating this PR.

• In the file sunkit_image/coalignment.py:

Line 7:101: E501 line too long (107 > 100 characters)
Line 112:29: E203 whitespace before ':'
Line 112:79: E203 whitespace before ':'
Line 112:101: E501 line too long (106 > 100 characters)
Line 218:35: E203 whitespace before ':'
Line 219:35: E203 whitespace before ':'
Line 432:55: E203 whitespace before ':'
Line 432:86: E203 whitespace before ':'
Line 432:101: E501 line too long (104 > 100 characters)
Line 556:101: E501 line too long (106 > 100 characters)

• In the file sunkit_image/tests/test_coalignment.py:

Line 110:101: E501 line too long (104 > 100 characters)
Line 160:101: E501 line too long (103 > 100 characters)
Line 211:101: E501 line too long (102 > 100 characters)
Line 212:9: W503 line break before binary operator
Line 213:101: E501 line too long (102 > 100 characters)
Line 214:9: W503 line break before binary operator
Line 244:53: E203 whitespace before ':'
Line 244:76: E203 whitespace before ':'
Line 250:101: E501 line too long (105 > 100 characters)
Line 288:101: E501 line too long (107 > 100 characters)
Line 306:101: E501 line too long (107 > 100 characters)
Line 386:101: E501 line too long (103 > 100 characters)

Comment last updated at 2022-03-10 20:03:54 UTC