Implement filesystem stores for pnd, device, sbi

Related #185 (closed)

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

controller/api/initialise_test.go

@@ -80,8 +80,8 @@ func bootstrapUnitTest() {
 		log.Fatal(err)
 	}
 
-	pndStore = nucleus.NewPndStore()
-	sbiStore = nucleus.NewSbiStore(pndUUID)
+	pndStore = nucleus.NewMemoryPndStore()
+	sbiStore = nucleus.NewMemorySbiStore()
 	userService = rbacImpl.NewUserService(rbacImpl.NewMemoryUserStore())
 	roleService = rbacImpl.NewRoleService(rbacImpl.NewMemoryRoleStore())