storage, heap and startup works

[Dreaded-Gnu]

Pull request to add storage server. It will also close the issue with heap revise, since it was necessary to replace it.

Closes #50 Closes #43 Closes #53

Things to be addressed:

• [x] Fix storage sd server hang up on write, when sdhost implementation is active
• [x] Test made changes on real hardware before merge
  • [x] Fix problem with off_t on real hardware overfloating since it's smaller than uint32_t
  • [x] EMMC driver hangs sometimes when reading data
  • [x] Weird behaviour with ext library and caching
• [x] SDHost driver to slow => use dma for copying instead of manual copy or perform manual copy within mmio server
• [x] EMMC driver to slow => use dma for copying instead of manual copy
• [x] Extend iomem by dma write logic similar to read logic
• [ ] Implement logic for umount and complete logic for mount
• [x] Increase performance of shared memory attach slowing down due to virt_is_mapped_in_context and it's logic
• [x] Fix dma allocator failing everytime with not enough space
• [x] Check for performance improvements related to remote procedure calls slowing down read
• [ ] Create follow up to remove non dma code once dma copy is working in emmc and sdhost
• [ ] Test writing to sdcard via emmc and sdhost somehow