File utilities and datatype implementation for a C-based code generator (#5)

Co-authored-by: Abdelrahman Said <said.abdelrahman@flawlessai.com>
Reviewed-on: #5
Co-authored-by: Abdelrahman <said.abdelrahman89@gmail.com>
Co-committed-by: Abdelrahman <said.abdelrahman89@gmail.com>

codegen/array/snippets/alloc_capacity

@@ -1,4 +1,4 @@
-  wapp_debug_assert(allocator != NULL, "`array` should not be NULL");
+  wapp_debug_assert(allocator != NULL, "`allocator` should not be NULL");
 
   u64 allocation_size = sizeof({ArrayType}) + item_size * capacity;
   {ArrayType} *array  = wapp_mem_allocator_alloc(allocator, allocation_size);