[cbor] Overflow when decoding uint32 for Major type 0

[cowtowncoder]

(moved from jackson-dataformat-cbor, by @TianlinZhou)

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When decoding unit32 that is larger than 2^31 - 1, overflow will happen.
For example, decoding "1a 8a e8 08 f1" will get -1964504847, but it should be 2330462449.

[cowtowncoder]

@TianlinZhou I may need some help here, can not quite reproduce the problem with 2.8.4.

[cowtowncoder]

Actually, never mind, got it. While Jackson itself never writes such values (which is also why no unit tests noticed this issue), I can manually construct such input value.

[cowtowncoder]

Was able to fix this and related cases (int64 has similar issue).