Crypt module (#549)

- Moved cryptography code out of Tactility project and into a kernel module.
- Converted C++ code to C style interface
- Hardened security

TactilityCore/CMakeLists.txt

@@ -7,12 +7,11 @@ file(GLOB_RECURSE SOURCE_FILES Source/*.c*)
 list(APPEND REQUIRES_LIST
     TactilityFreeRtos
     TactilityKernel
-    mbedtls
 )
 
 if (DEFINED ENV{ESP_IDF_VERSION})
     list(APPEND REQUIRES_LIST
-        nvs_flash esp_rom
+        esp_rom
     )
 endif ()