add tasker module description and samples

samples/command-test.lua

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+function on_command(text)
+    ui:show_text(txt)
+end

samples/tasker-test.lua

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+local tasks = {}
+
+function on_resume()
+    tasks = tasker:get_tasks()
+    ui:show_lines(tasks)
+end
+
+function on_click(idx)
+    tasker:run_task(tasks[idx])
+end
+
+-- Optional
+function on_task_result(success)
+    if success then
+        ui:show_toast("Successfull!")
+    else
+        ui:show_toast("Failed!")
+    end
+end

samples/tasker-test2.lua

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+local names = {
+    "Open AIO Launcher site",
+    "Copy to clipboard",
+    "Wait 2 seconds and enable flashlight",
+}
+
+local tasks = {
+    "VIEW_URL http://aiolauncher.app '' false ''",
+    "SET_CLIPBOARD 'Text to copy' false ''",
+    "WAIT 0 2 0 0 0; TORCH true",
+}
+
+function on_resume()
+    ui:show_lines(names)
+end
+
+function on_click(idx)
+    tasker:run_own_task(tasks[idx])
+end
+
+-- Optional
+function on_task_result(success)
+    if success then
+        ui:show_toast("Successfull!")
+    else
+        ui:show_toast("Failed!")
+    end
+end

samples/tasker-test3.lua

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+function on_resume()
+    ui:show_text("Click me")
+end
+
+function on_click()
+    tasker:run_task("Test", {
+        firstname = "John",
+        lastname = "Doe",
+    })
+end