Codepoint sets in unicode.py must be updated

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These are hard-wired and must be cross-checked against the current unicode data files in https://www.unicode.org/Public/UNIDATA/extracted/DerivedJoiningType.txt among others.

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Here are the differences in the built-in tables from Unicode version to version (generated by a modified version of the check_codepoints.py program.)

For example, the line 11.0.0 Join_Type=L {(68864, 68864)} <<< set() indicates that Unicode 11.0 added code point 68864 to have Join_Type=L. All code points are in decimal.

If there are code points to the right of the <<<, these were the previous code point ranges that were extended/overlapped.

14.0.0 Default_Ignorable_Code_Point {(6155, 6159)} <<< {(6155, 6158)}
11.0.0 Hebrew {(1519, 1524)} <<< {(1520, 1524)}
11.0.0 Join_Type=D {(68865, 68897), (69457, 69459), (69424, 69426), (68899, 68899), (69428, 69444), (6176, 6264)} <<< {(6176, 6263)}
11.0.0 Join_Type=R {(69460, 69460), (68898, 68898), (69427, 69427)} <<< set()
11.0.0 Join_Type=L {(68864, 68864)} <<< set()
11.0.0 Join_Type=T {(70750, 70750), (70459, 70460), (68900, 68903), (70089, 70092), (2558, 2558), (69446, 69456), (73104, 73105), (3076, 3076), (73111, 73111), (72193, 72202), (73459, 73460), (2259, 2273), (71727, 71735), (71737, 71738), (73109, 73109), (2045, 2045), (43263, 43263)} <<< {(70090, 70092), (2260, 2273), (69821, 69821), (72201, 72202), (70460, 70460), (72193, 72198)}
12.0.0 Join_Type=T {(125252, 125259), (123184, 123190), (72148, 72151), (78896, 78904), (3764, 3772), (72160, 72160), (72154, 72155), (43452, 43453), (94031, 94031), (123628, 123631)} <<< {(125252, 125258), (3764, 3769), (3771, 3772), (43452, 43452)}
13.0.0 Join_Type=D {(2234, 2247), (69578, 69578), (69554, 69555), (69563, 69564), (69569, 69569), (69566, 69567), (69572, 69572), (69560, 69560), (69552, 69552)} <<< {(2234, 2237)}
13.0.0 Join_Type=R {(69556, 69558), (69577, 69577), (69565, 69565), (69570, 69571), (2134, 2136), (69561, 69562)} <<< set()
13.0.0 Join_Type=L {(69579, 69579)} <<< set()
13.0.0 Join_Type=T {(2901, 2902), (69291, 69292), (72003, 72003), (70095, 70095), (71995, 71996), (3457, 3457), (94180, 94180), (43052, 43052), (71998, 71998), (6832, 6848)} <<< {(6832, 6846), (2902, 2902)}
14.0.0 Join_Type=D {(69488, 69491), (69494, 69505), (2182, 2182), (2185, 2189), (2234, 2248), (2227, 2232)} <<< {(2227, 2228), (2234, 2247), (2230, 2232)}
14.0.0 Join_Type=R {(69492, 69493), (2160, 2178), (2190, 2190)} <<< set()
14.0.0 Join_Type=T {(69744, 69744), (7616, 7679), (6159, 6159), (2200, 2207), (69747, 69748), (118528, 118573), (69506, 69509), (123566, 123566), (3132, 3132), (6832, 6862), (5938, 5939), (69826, 69826), (2250, 2273), (118576, 118598)} <<< {(7675, 7679), (7616, 7673), (5938, 5940), (2259, 2273), (6832, 6848)}
11.0.0 Han {(19968, 40943)} <<< {(19968, 40938)}
12.0.0 Hiragana {(110928, 110930)} <<< set()
12.0.0 Katakana {(110948, 110951)} <<< set()
13.0.0 Han {(196608, 201546), (19968, 40956), (131072, 173789), (13312, 19903), (94192, 94193)} <<< {(131072, 173782), (19968, 40943), (13312, 19893)}
14.0.0 Hiragana {(110593, 110879)} <<< {(110593, 110878)}
14.0.0 Katakana {(110576, 110579), (110589, 110590), (110880, 110882), (110581, 110587)} <<< set()
14.0.0 Han {(173824, 177976), (19968, 40959), (131072, 173791), (94178, 94179)} <<< {(19968, 40956), (131072, 173789), (173824, 177972)}

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Still left to do:

1. Describe the future procedure for updating and checking the Unicode tables in the README.

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Fixed in 1.0.4.