GPU and dask support for multispectral tools

Author: thuydotm

.gitignore

@@ -130,3 +130,4 @@ dmypy.json
 .pyre/
 .DS_Store
 /test_tiles_output
+*.TIF*

examples/user_guide/5_Classification.ipynb

@@ -365,7 +365,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.10"
+   "version": "3.8.3"
   },
   "nbTranslate": {
    "displayLangs": [