new icon: opera (original, original-wordmark) (#730)

* new icon: opera (original, original-wordmark)
- Fix Issue #722

* Update icons/opera/opera-original-wordmark.svg

Co-authored-by: David Leal <halfpacho@gmail.com>

* Update devicon.json

Added opera aliases

Co-authored-by: David Leal <halfpacho@gmail.com>

* Update icons/opera/opera-original.svg

Updated viewport for opera

Co-authored-by: David Leal <halfpacho@gmail.com>

* Update devicon.json (fix)

* Updated devicon.json (fix tab)

* opera: added plain and plain-wordmark

* Update devicon.json

Co-authored-by: David Leal <halfpacho@gmail.com>
Co-authored-by: Thomas Bui <43018778+Thomas-Boi@users.noreply.github.com>

Author: 3 people

devicon.json

@@ -2880,6 +2880,26 @@
         },
         "color": "#0b5a9d",
         "aliases": []
+    },
+	{
+        "name": "opera",
+        "tags": [
+            "browser"
+        ],
+        "versions": {
+            "svg": [
+                "original",
+                "original-wordmark",
+				"plain",
+				"plain-wordmark"
+            ],
+            "font": [
+                "plain",
+		"plain-wordmark"
+            ]
+        },
+        "color": "#f7192d",
+        "aliases": []
     },
     {
         "name": "oracle",