Elaborates on the conversion of XSD types when using "use native types"

[mielvds]

Fixes tests

• https://w3c.github.io/json-ld-api/tests/fromRdf-manifest.html#t0027

useNativeTypes flag being true is disregarded for a value that cannot be serialized into a native JSON value.

This fix elaborates on the conversion of XSD types when using "use native types":

• "1"/"0" is now also True/False
• infinity is properly converted

This completes test-suite compliance for fromRdf

[github-actions]

Coverage Report

File	Stmts	Miss	Cover	Missing
lib/pyld
canon.py	218	4	98%	27, 180, 565–566
context_resolver.py	103	8	92%	78, 137, 151, 197, 203–205, 229
iri_resolver.py	141	3	98%	311–312, 322
jsonld.py	2509	167	93%	282–286, 369, 406, 411, 421, 438–453, 489–490, 532, 540, 560, 568–569, 677–682, 762–763, 778–779, 839–844, 869–870, 885–886, 896–897, 923, 964, 974, 980–984, 995–996, 1039, 1046, 1111, 1134, 1156–1158, 1168–1171, 1186, 1209, 1221–1224, 1320, 1332–1335, 1355, 1384, 1417, 1421, 1458, 1501, 1520–1523, 1536, 1585, 1688–1695, 1722–1724, 1750–1753, 1929, 1967, 2273, 2404, 2413–2420, 2514, 2541, 2565, 2573, 3152, 3197, 3216, 3281, 3334, 3337, 3400, 3485, 3519, 3527, 3805, 3810, 3812, 3861, 3998–4002, 4106, 4148, 4211, 4446, 4734, 4866, 4900, 4929–4932, 4958–4959, 5142, 5206, 5233, 5307, 5309, 5327, 5425, 5474, 5706, 5708, 5747, 5749, 5758, 5897, 6025, 6112, 6232–6246, 6308, 6310, 6378, 6591, 6597–6601, 6640, 6643, 6733–6734, 6743
lib/pyld/documentloader
aiohttp.py	71	22	69%	29–39, 68, 74, 86, 98–106, 118–121, 138, 153–156
requests.py	49	5	90%	54, 68, 80–88
TOTAL	3279	209	94%

Tests	Skipped	Failures	Errors	Time
1697	41 💤	0 ❌	0 🔥	2m 52s ⏱️