✨ Added CLZ opcodes

[atarpara]

Description

Don't merge till #1505.

Added src/utils/clz folder.

Checklist

Ensure you completed all of the steps below before submitting your pull request:

• Ran forge fmt?
• Ran forge test?

Pull requests with an incomplete checklist will be thrown out.

[atarpara]

CLZ-based gas optimizations across LibBit, FixedPointMathLib, and LibZip

Library	Test function name	Baseline	CLZ	Delta
LibBit	testCLZ	306425	182223	−124202
	testFFS	152619	108858	−43761
	testFLS	254381	150002	−104379
	testCommonBytePrefix	1572	659	−913
	testCountZeroBytesDifferential(bytes)	8785	7053	−1732
FixedPointMathLib	testLog2	265326	136107	−129219
	testLog2Up	318958	159794	−159164
	testLog10	75973	54880	−21093
	testLog256	22804	12553	−10251
	testCbrt	10279	7118	−3161
	testSqrt	45390	33640	−11750
	testLambertW0WadMonotonicallyIncreasing	18356886	17296838	−1060048
LibZip	testABCCdCompressAndDecompressGas	3915	3534	−381
	testABCStoreWithCdCompressGas	24857	24476	−381
	testCdCompress	16684	14047	−2637
	testCdFallback	3150724	3052584	−98140
	testFlzCompressDecompress	2745055	2731401	−13654
	testFlzCompressDecompress2	742732	735518	−7214
	testCdFallbackDecompressor(bytes)	196686	194844	−1842
	test__codesize	23664	23511	−153

[Vectorized]

Holy sheets.