1. Move yottadisk from top level to storage as it becomes
   basic interface of storage.
2. Created a new YTFS struct as entry point of YTFS.
3. Use indexDB and Context to manage YTFS.
4. Add few testcases, include open/reopen/get/put.
5. Fix playground test.
Signed-off-by: NDoMyJob <46307927+DoMyJob@users.noreply.github.com>

[Don't Merge]Fix hybrid test goroutine stack overflow

Replace duplicate code with existed function.
Signed-off-by: NDoMyJob <46307927+DoMyJob@users.noreply.github.com>

This pattern happens in command line calling like:
#yottadisk add 1 1
#yottadisk add 2 2
#yottadisk get 1 --> return 1.
Add this go test to simulate this behavior.

Signed-off-by: NDoMyJob <46307927+DoMyJob@users.noreply.github.com>

Signed-off-by: NDoMyJob <46307927+DoMyJob@users.noreply.github.com>

Signed-off-by: NDoMyJob <46307927+DoMyJob@users.noreply.github.com>

Change the way write and read index size table.

Signed-off-by: NDoMyJob <46307927+DoMyJob@users.noreply.github.com>

Rename CacheManager to Manager, add more comments and re-format related code.
Signed-off-by: NDoMyJob <46307927+DoMyJob@users.noreply.github.com>

Signed-off-by: NDoMyJob <46307927+DoMyJob@users.noreply.github.com>

Initial map with capablity to save realloc effort.

Signed-off-by: NDoMyJob <46307927+DoMyJob@users.noreply.github.com>

* Code Refactory, clean load table logic.

* Use Offsetof() instead of magic number.
* Remove useless comments.

Add benchmark script and config template.

Signed-off-by: NDoMyJob <46307927+DoMyJob@users.noreply.github.com>

Initial YTFS implementation.

Feature enabled:
* Key Value pair store/load.
* Configurable data size and arrangement.
* Optimized for data writing.