travis should install hardware in the home folder

.travis.yml

@@ -8,7 +8,9 @@ script:
   - wget -O arduino.tar.xz https://www.arduino.cc/download.php?f=/arduino-nightly-linux64.tar.xz
   - tar xf arduino.tar.xz
   - mv arduino-nightly $HOME/arduino_ide
-  - cd $HOME/arduino_ide/hardware
+  - mkdir -p $HOME/Arduino/hardware
+  - mkdir -p $HOME/Arduino/libraries
+  - cd $HOME/Arduino/hardware
   - mkdir espressif
   - cd espressif
   - ln -s $TRAVIS_BUILD_DIR esp32