Adding Cloud changelog for 1.7.0

Author: Kayla Wilkins

src/content/changelog/cloud-manager-version-1-7-0.md

@@ -0,0 +1,23 @@
+---
+title: Cloud Manager v1.7.0
+date: 2020-04-20T05:00:00.000Z
+version: 1.7.0
+changelog:
+  - Cloud Manager
+---
+
+### Added:
+
+- Firewalls: Client-side form validation
+
+### Changed:
+
+- Make LKE available regardless of customer account response
+- Request OBJ Buckets per-cluster
+- Theming performance optimizations
+
+### Fixed:
+
+- Correct alignment for “Date Created” field on mobile invoice table
+- NodeBalancer error handling
+- Current size of pool was updating along with target size when resizing a Node Pool.