Add delete objects api (#303)

Supports single and multiple objects which needs to be defined by recursive flag.
An object to be deleted needs to be defined by a query parameter, path, since it can be
an object or a folder.

.github/workflows/go.yml

@@ -3,10 +3,10 @@ name: Go
 on:
   pull_request:
     branches:
-    - master
+      - master
   push:
     branches:
-    - master
+      - master
 
 jobs:
   build:
@@ -14,7 +14,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        go-version: [1.13.x, 1.14.x]
+        go-version: [1.14.x]
         os: [ubuntu-latest]
     steps:
       - name: Set up Go ${{ matrix.go-version }} on ${{ matrix.os }}