[Feature] Add kernel-accessible ImageBatchVarShapeWrapper

[zacharyvincze]

PR Description

• Code Changes
  • Adds the required kernel-accessible wrappers for the ImageBatchVarShape container.
  • Renames ImageWrapper to TensorWrapper for clarity purposes. TensorWrapper should be used to wrap Tensor, while ImageBatchVarShapeWrapper wraps its respective ImageBatchVarShape.
  • Reworks BorderWrapper and InterpolationWrapper so that they can be composed with either TensorWrapper or ImageBatchVarShapeWrapper. Reduces potential code duplication.
• Tests
  • Adds unit tests for all newly added types. Ensures ImageBatchVarShape can perform a round-trip copy from the GPU to the host while indexing properly. Also tests composability with the BorderWrapper implementation.

Notes

• Keeping as a draft PR until [Feature] Add Image and variable-shape ImageBatch core types #151 is merged in. Since this PR is based off of that branch.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 85.61151% with 80 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/core/detail/var_shape_descriptor_table.cpp	81.32%	8 Missing and 9 partials ⚠️
src/core/image_batch_var_shape.cpp	85.47%	10 Missing and 7 partials ⚠️
src/op_adv_cvt_color.cpp	63.64%	16 Missing ⚠️
src/core/image.cpp	85.88%	7 Missing and 5 partials ⚠️
include/core/image_batch_var_shape.hpp	16.67%	5 Missing ⚠️
include/core/image_data.hpp	55.56%	3 Missing and 1 partial ⚠️
include/core/wrappers/interpolation_wrapper.hpp	69.23%	4 Missing ⚠️
include/core/image.hpp	57.14%	3 Missing ⚠️
include/core/image_format.hpp	80.00%	0 Missing and 1 partial ⚠️
include/core/wrappers/tensor_wrapper.hpp	75.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #154      +/-   ##
===========================================
+ Coverage    78.13%   78.97%   +0.84%     
===========================================
  Files           79       90      +11     
  Lines         3347     3762     +415     
  Branches       733      790      +57     
===========================================
+ Hits          2615     2971     +356     
- Misses         369      405      +36     
- Partials       363      386      +23     

Files with missing lines	Coverage Δ
include/core/detail/var_shape_descriptor_table.hpp	100.00% <100.00%> (ø)
include/core/image_batch_data.hpp	100.00% <100.00%> (ø)
include/core/image_storage.hpp	100.00% <100.00%> (ø)
include/core/wrappers/border_wrapper.hpp	74.14% <100.00%> (+1.92%)	⬆️
include/kernels/host/convert_to_host.hpp	100.00% <ø> (ø)
include/kernels/host/reformat_host.hpp	100.00% <100.00%> (ø)
src/core/image_batch_data.cpp	100.00% <100.00%> (ø)
src/core/image_data.cpp	100.00% <100.00%> (ø)
src/op_bilateral_filter.cpp	77.00% <100.00%> (-0.23%)	⬇️
src/op_bnd_box.cpp	78.62% <100.00%> (ø)
... and 25 more

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