Add config for samsung galaxy s7 and images on how to press the samsung buttons

Author: tsterbak

openandroidinstaller/assets/configs/a3y17lte.yaml

@@ -20,10 +20,11 @@ steps:
       command: "heimdall flash --no-reboot --RECOVERY <recovery>"
     - title: "Boot into recovery"
       type: confirm_button
+      img: samsung-buttons.png
       content: >
-        Unplug the USB cable from your device. Then manually reboot into recovery by pressing the Volume Down + Power buttons for 
+        Unplug the USB cable from your device. Then manually reboot into recovery by pressing the *Volume Down* + *Power buttons* for 
         8~10 seconds until the screen turns black & release the buttons immediately when it does, then boot to recovery with the device powered off, 
-        hold Volume Up + Home + Power.
+        hold *Volume Up* + *Home* + *Power*.
   install_os:
     - title: "Flash LineageOS"
       type: confirm_button

openandroidinstaller/assets/configs/a5xelte.yaml

@@ -18,10 +18,11 @@ steps:
       command: "heimdall flash --no-reboot --RECOVERY <recovery>"
     - title: "Boot into recovery"
       type: confirm_button
+      img: samsung-buttons.png
       content: >
-        Unplug the USB cable from your device. Then manually reboot into recovery by pressing the Volume Down + Power buttons for 8~10 seconds 
+        Unplug the USB cable from your device. Then manually reboot into recovery by pressing the *Volume Down* + *Power buttons* for 8~10 seconds 
         until the screen turns black & release the buttons immediately when it does, then boot to recovery with the device powered off, 
-        hold Volume Up + Home + Power.
+        hold *Volume Up* + *Home* + *Power button*.
   install_os:
     - title: "Flash LineageOS"
       type: confirm_button

openandroidinstaller/assets/configs/herolte.yaml

@@ -0,0 +1,53 @@
+metadata:
+  maintainer: Tobias Sterbak (tsterbak)
+  devicename: Samsung Galaxy S7
+  devicecode: herolte 
+steps:
+  unlock_bootloader:
+  flash_recovery:
+    - title: "Boot into bootloader"
+      type: call_button
+      content: >
+        As a first step, you need to boot into the bootloader. A bootloader is the piece of software, 
+        that tells your phone who to start and run an operating system (like Android). Your device should be turned on. 
+        Then press 'Confirm and run' to reboot into the bootloader. Continue once it's done.
+      command: "adb reboot download"
+    - title: "Flash custom recovery"
+      type: call_button
+      content: In this step, you need to flash a custom recovery on your device. Press 'Confirm and run' to start the process. Confirm afterwards to continue.
+      command: "heimdall flash --no-reboot --RECOVERY <recovery>"
+    - title: "Boot into recovery"
+      type: confirm_button
+      img: samsung-buttons.png
+      content: >
+        Unplug the USB cable from your device. Then manually reboot into recovery by pressing the *Volume Down* + *Power buttons* for 8~10 seconds 
+        until the screen turns black & release the buttons immediately when it does, then boot to recovery with the device powered off, 
+        hold *Volume Up* + *Home* + *Power button*.
+  install_os:
+    - title: "Flash LineageOS"
+      type: confirm_button
+      content: >
+        Now swipe right to allow modifications then tap 'Wipe' on your phone. 
+        Next tap 'Format Data' and follow the instructions on your phone to continue with the formatting process. 
+        This will remove encryption and delete all files stored in the internal storage. Confirm to continue once you are done.
+    - title: "Flash LineageOS"
+      type: confirm_button
+      content: >
+        Return to the previous menu on your phone by going back two times. 
+        Them tap 'Advanced Wipe', and select the 'Cache' and 'System' partitions and then 'Swipe to Wipe'. 
+        Confirm to continue once you are done.
+    - title: "Flash LineageOS"
+      type: confirm_button
+      content: >
+        Now connect the phone to the computer again with the USB-cable. On the device, go back three times and select “Advanced”, 
+        then “ADB Sideload”. Select 'Wipe cache' and 'Wipe dalvik cache', then swipe to begin sideload. Then confirm here.
+    - title: "Flash LineageOS"
+      type: call_button
+      content: >
+        Now it's time to flash the LineageOS image. Don't remove the USB-Cable and press 'Confirm and run' to start! 
+        This might take a while. Confirm after it's done.
+      command: "adb sideload <image>"
+    - title: "Reboot into LineageOS"
+      type: call_button
+      content: As a final step, reboot into LineageOS to finish the installation by pressing the button.
+      command: "adb reboot"