Replace Manual Modulo (%) checks with .is_multiple_of() #925

Clippy is reporting 21 instances where % should be replaced with the .is_multiple_of() method for better code clarity and idiomaticity.

List of Affected Files :

• src/ciphers/aes.rs (lines 321, 351)
• src/ciphers/blake2b.rs (line 58)
• src/ciphers/sha3.rs (line 274)
• src/data_structures/probabilistic/bloom_filter.rs (line 112)
• src/general/permutations/heap.rs (line 26)
• src/math/aliquot_sum.rs (line 14)
• src/math/collatz_sequence.rs (line 9)
• src/math/factors.rs (line 10)
• src/math/interquartile_range.rs (lines 15, 32)
• src/math/perfect_numbers.rs (line 5)
• src/math/pollard_rho.rs (lines 140, 204)
• src/math/prime_check.rs (lines 4, 10)
• src/math/prime_factors.rs (line 8)
• src/math/quadratic_residue.rs (line 81)
• src/number_theory/euler_totient.rs (lines 9, 12)

Required Changes

Replace patterns like:
number % divisor == 0 OR number % divisor != 0 with number.is_multiple_of(divisor)

Clippy Warning

error: manual implementation of .is_multiple_of()
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of