feature/did accounts (#23)

* feat: add support for DID number as primary key for Controllers

* refactor: rename pkg/proxy to app/proxy

* feat: add vault module keeper tests

* feat(vault): add DID keeper to vault module

* refactor: move vault client code to its own package

* refactor(vault): extract schema definition

* refactor: use vaulttypes for MsgAllocateVault

* refactor: update vault assembly logic to use new methods

* feat: add dwn-proxy command

* refactor: remove unused context.go file

* refactor: remove unused web-related code

* feat: add DWN proxy server

* feat: add BuildTx RPC to vault module

* fix: Implement BuildTx endpoint

* feat: add devbox integration to project

app/proxy/config.go

@@ -0,0 +1,31 @@
+package proxy
+
+import "github.com/spf13/viper"
+
+type Config struct {
+	Host     string `mapstructure:"HOST"`
+	Port     string `mapstructure:"PORT"`
+	SSL      bool   `mapstructure:"SSL"`
+	CertFile string `mapstructure:"CERT_FILE"`
+	KeyFile  string `mapstructure:"KEY_FILE"`
+}
+
+func (c *Config) GetHostname() string {
+	return c.Host + ":" + c.Port
+}
+
+func LoadConfig(path string) (config Config, err error) {
+	viper.AddConfigPath(path)
+	viper.SetConfigName("app")
+	viper.SetConfigType("env")
+
+	viper.AutomaticEnv()
+
+	err = viper.ReadInConfig()
+	if err != nil {
+		return
+	}
+
+	err = viper.Unmarshal(&config)
+	return
+}