new icon: matlab (line) (#640)

* Add matlab-line

* Fixed issues reported by check svg bot

* optimisation for svg (#643)

Co-authored-by: Clemens Bastian <8781699+amacado@users.noreply.github.com>
Co-authored-by: David Leal <halfpacho@gmail.com>

devicon.json

@@ -2452,10 +2452,12 @@
         "versions": {
           "svg": [
             "original",
-            "plain"
+            "plain",
+            "line"
           ],
           "font": [
-            "plain"
+            "plain",
+            "line"
           ]
         },
         "color": "#6dd0c7",

icons/matlab/matlab-line.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 128 128"><path fill="#FF830F" d="M85.7 10.1c.3.1 2.2.7 6 7.2 2.6 4.4 5.6 10.9 9 19.1 6.3 15.2 12.8 33.9 17.5 47.5 1.5 4.4 2.8 8.1 3.8 11-1.3-1.1-2.7-2.2-4.1-3.3-7.2-5.6-12.6-8.3-16.3-8.3h-.2c-7.1.2-12.5 6.4-20.1 14.9-2.4 2.7-5.1 5.8-8.2 9.1-8 8.4-13.2 10.7-15.6 11.4-3.6-11.6-7.6-20.2-12.1-25.5-2.6-3.1-5.2-5.2-8-6.2l5.9-4.1.1-.1.1-.1c7.4-6 15.3-17.6 23.4-34.3 6-12.4 9.9-23.1 9.9-23.2l.1-.2v-.2c3.1-14.4 8.6-14.7 8.8-14.7m0-2.2c-1.3 0-7.7.8-11.1 16.6 0 0-15.4 42.5-32.6 56.5l-12.5 8.7c.8-.5 2.3-1.1 4.2-1.1 5.3 0 14 5.1 22.2 32.6h.2c1.1 0 7.6-.6 18.7-12.3 12.3-13 18.6-23.1 26.7-23.3h.1c7.5 0 23.6 15.1 26.1 17.5C124 97 98 9.3 86 7.9h-.3zM29.6 89.7c-.5.3-.8.6-.8.6l.8-.6zm98.1 13.3c.1.2.2.3.3.3l-.3-.3z" style="fill:#6dd0c7;fill-opacity:1"/><path fill="none" stroke="#FF830F" stroke-width="2" stroke-linecap="square" stroke-miterlimit="10" d="M55.3 66.5 38.6 53.9 3 69.9l25.9 20c2.5.1 21.8-11.5 26.4-23.4z" style="fill:none;fill-opacity:1;stroke:#6dd0c7;stroke-opacity:1"/><path fill="none" stroke="#FF830F" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" d="M38.8 53.9s9.1-12.7 14.5-13.8C58.7 38.9 65.7 38.6 79 15" style="stroke:#6dd0c7;stroke-opacity:1"/></svg>