PEP8 fixes

This fixes the following detected issues:
    src/mousetrap/image.py:61:13: E126 continuation line over-indented for hanging indent
    src/mousetrap/image.py:62:13: E126 continuation line over-indented for hanging indent
    src/mousetrap/image.py:63:13: E126 continuation line over-indented for hanging indent
    src/mousetrap/image.py:64:13: E126 continuation line over-indented for hanging indent
    src/mousetrap/image.py:65:13: E126 continuation line over-indented for hanging indent
    src/mousetrap/image.py:66:13: E126 continuation line over-indented for hanging indent
    src/mousetrap/image.py:67:13: E126 continuation line over-indented for hanging indent
    src/mousetrap/image.py:68:13: E126 continuation line over-indented for hanging indent
    src/mousetrap/image.py:69:13: E126 continuation line over-indented for hanging indent
    src/mousetrap/image.py:70:13: E123 closing bracket does not match indentation of opening bracket's line
    src/mousetrap/vision.py:18:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/vision.py:19:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/vision.py:20:17: E123 closing bracket does not match indentation of opening bracket's line
    src/mousetrap/vision.py:54:5: E303 too many blank lines (2)
    src/mousetrap/vision.py:118:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/vision.py:119:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/vision.py:120:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/vision.py:131:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/vision.py:133:17: E123 closing bracket does not match indentation of opening bracket's line
    src/mousetrap/vision.py:143:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/vision.py:144:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/vision.py:145:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/plugins/eyes.py:45:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/plugins/eyes.py:65:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/plugins/eyes.py:66:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/plugins/eyes.py:69:17: E123 closing bracket does not match indentation of opening bracket's line
    src/mousetrap/plugins/eyes.py:71:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/plugins/eyes.py:72:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/plugins/eyes.py:75:17: E123 closing bracket does not match indentation of opening bracket's line
    src/mousetrap/plugins/eyes.py:77:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/plugins/eyes.py:78:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/plugins/eyes.py:81:17: E123 closing bracket does not match indentation of opening bracket's line
    src/mousetrap/plugins/nose.py:42:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/plugins/nose.py:43:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/plugins/nose.py:46:17: E123 closing bracket does not match indentation of opening bracket's line
    src/mousetrap/plugins/nose.py:48:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/plugins/nose.py:49:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/plugins/nose.py:52:17: E123 closing bracket does not match indentation of opening bracket's line
    src/mousetrap/plugins/nose.py:58:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/plugins/nose.py:59:17: E126 continuation line over-indented for hanging indent
    src/mousetrap/plugins/nose.py:60:17: E123 closing bracket does not match indentation of opening bracket's line