Description

configuration is meant to be a single source of configuration values.
in order to decouple configuration logic from configuration storage tool.  
configuration package can deal with whatever storage tool, and any application
wants to get or set configurations must deal with configuration module directly
instead of dealing with a specific storage tool like (ssm or secret manager), also 
it can be used for local configurations as seen in examples below.

local usage example

    `   
    // init internal used storage
    s := configuration.NewLocalConfigStorage()
    // init service
    configProvider := configuration.NewProvider(s)
    
    // set config value
    URL := "http://localhost:9200"
    err := configProvider.Set(EsUrl, URL)

    // get config value
    esURL, err := configProvider.Get(EsUrl)`

aws ssm usage example

    ` 
    // init ssm storage
    s := configuration.NewSSMConfigStorage()
    // init service
    configProvider := configuration.NewProvider(s)
    
    // set config value
    URL := "http://localhost:9200"
    err := configProvider.Set(configuration.EsUrl, URL)

    // get config value
    esURL, err := configProvider.Get(configuration.EsUrl)`