feat: add implementation for the sha256 commitment scheme (#3)

* feat: add sha256 implementation of hashcom

Signed-off-by: Luca Georges Francois <luca@quartz.technology>

* docs: update cover path in main readme

Signed-off-by: Luca Georges Francois <luca@quartz.technology>

* docs: add instructions and examples for sha256 scheme

Signed-off-by: Luca Georges Francois <luca@quartz.technology>

* ci: update package version to 0.2.0

Signed-off-by: Luca Georges Francois <luca@quartz.technology>

Signed-off-by: Luca Georges Francois <luca@quartz.technology>

feat: initialize project architecture (#1)

* chore: add new ignored files

Signed-off-by: Luca Georges Francois <luca@quartz.technology>

* ci: add dependabot configuration

Signed-off-by: Luca Georges Francois <luca@quartz.technology>

* feat: add minimal version of the library

Signed-off-by: Luca Georges Francois <luca@quartz.technology>

* feat: add makefile for local development

Signed-off-by: Luca Georges Francois <luca@quartz.technology>

* ci: add github action configuration to run tests, linter and build the project

Signed-off-by: Luca Georges Francois <luca@quartz.technology>

* cd: add configuration for publishing library on crates.io

Signed-off-by: Luca Georges Francois <luca@quartz.technology>

* docs: update project description in main readme

Signed-off-by: Luca Georges Francois <luca@quartz.technology>

Signed-off-by: Luca Georges Francois <luca@quartz.technology>