Refactor unary + binary kernels

[nathanielsimard]

Removed some macros improving a bit compile time.

Before big refactor: 2m 56s
Before: 50.65s
After: 47.01s

[codecov]

Codecov Report

Attention: Patch coverage is 88.15029% with 41 lines in your changes missing coverage. Please review.

Project coverage is 83.16%. Comparing base (80e67b7) to head (fbdc2ed).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/burn-jit/src/kernel/unary_float.rs	87.71%	14 Missing ⚠️
crates/burn-jit/src/kernel/unary_numeric.rs	88.09%	10 Missing ⚠️
crates/burn-jit/src/kernel/binary.rs	93.63%	7 Missing ⚠️
crates/burn-jit/src/tensor/base.rs	50.00%	4 Missing ⚠️
crates/burn-jit/src/kernel/clamp.rs	62.50%	3 Missing ⚠️
crates/burn-jit/src/ops/float_ops.rs	88.88%	2 Missing ⚠️
crates/burn-jit/src/ops/int_ops.rs	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2665      +/-   ##
==========================================
+ Coverage   83.14%   83.16%   +0.02%     
==========================================
  Files         839      840       +1     
  Lines      107913   107909       -4     
==========================================
+ Hits        89719    89739      +20     
+ Misses      18194    18170      -24     

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