Fix #11071 - Implement 1u8, 1u16, 1u32, 1u64 in RNum

[radare]

No description provided.

[codecov-io]

Codecov Report

Merging #11765 into master will increase coverage by 0.04%.
The diff coverage is 22.22%.

@@            Coverage Diff             @@
##           master   #11765      +/-   ##
==========================================
+ Coverage   37.02%   37.07%   +0.04%     
==========================================
  Files         901      901              
  Lines      288109   288400     +291     
==========================================
+ Hits       106686   106926     +240     
- Misses     181423   181474      +51

Impacted Files	Coverage Δ
libr/util/unum.c	72.65% <22.22%> (-1%)	⬇️
binr/radare2/radare2.c	58.34% <0%> (+8.22%)	⬆️

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[radare]

@condret maybe you are interested in having other 1uXX numbers?