feat: Add dtype Parameter to Array Creation Primitives

[aturker-synnada]

Description

Closes #143

What is Changed

• Array creation primitives now take dtype parameter.

Checklist:

• Tests that cover the code added.
• Corresponding changes documented.
• All tests passed.
• The code linted and styled (pre-commit run --all-files has passed).

[codecov]

Codecov Report

Attention: Patch coverage is 96.55172% with 7 lines in your changes missing coverage. Please review.

Project coverage is 88.74%. Comparing base (06f9445) to head (b36a2dc).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
mithril/backends/with_autograd/mlx_backend/ops.py	88.00%	3 Missing ⚠️
mithril/backends/backend.py	66.66%	2 Missing ⚠️
...ithril/backends/with_autograd/mlx_backend/utils.py	60.00%	2 Missing ⚠️

@@            Coverage Diff             @@
##             main     #165      +/-   ##
==========================================
- Coverage   89.05%   88.74%   -0.32%     
==========================================
  Files          61       61              
  Lines       15754    15857     +103     
==========================================
+ Hits        14030    14072      +42     
- Misses       1724     1785      +61     

Files with missing lines	Coverage Δ
...hril/backends/with_autograd/jax_backend/backend.py	84.56% <100.00%> (+0.31%)	⬆️
mithril/backends/with_autograd/jax_backend/ops.py	86.09% <100.00%> (+0.55%)	⬆️
...ithril/backends/with_autograd/jax_backend/utils.py	62.71% <100.00%> (-8.32%)	⬇️
...hril/backends/with_autograd/mlx_backend/backend.py	71.53% <100.00%> (+1.34%)	⬆️
...il/backends/with_autograd/torch_backend/backend.py	92.56% <100.00%> (+0.15%)	⬆️
...ithril/backends/with_autograd/torch_backend/ops.py	80.64% <100.00%> (+0.81%)	⬆️
...hril/backends/with_autograd/torch_backend/utils.py	76.16% <100.00%> (-5.47%)	⬇️
.../backends/with_manualgrad/numpy_backend/backend.py	89.16% <100.00%> (+0.33%)	⬆️
...hril/backends/with_manualgrad/numpy_backend/ops.py	86.22% <100.00%> (+0.51%)	⬆️
...il/backends/with_manualgrad/numpy_backend/utils.py	66.47% <100.00%> (-8.38%)	⬇️
... and 11 more

... and 2 files with indirect coverage changes