Restore profile functionality + full serialization

[AlmasB]

This includes generation of profile data, saving and loading. Also needs to consider allowing no-profile games

• [ ] FXGLMenu, use profile name instead of "./" to save/load data. Perhaps we can add a setting "saveDir" and save there?

• [ ] FXGLDefaultMenu should be updated too

• [ ] Input serialization:

override fun save(profile: UserProfile) {
        log.debug("Saving data to profile")

        val bundle = Bundle("input")
        bindings.forEach { bundle.put(it.key.toString(), it.value.toString()) }

        bundle.log()
        profile.putBundle(bundle)
    }

    override fun load(profile: UserProfile) {
        log.debug("Loading data from profile")

        val bundle = profile.getBundle("input")
        bundle.log()

        for (binding in bindings) {

            val action = binding.key

            // if binding is not present in bundle, then we added some new binding thru code
            // it will be saved on next serialization and will be found in bundle
            var triggerName: String? = bundle.get<String>("$action")
            if (triggerName == null)
                continue

            var modifierName = "NONE"

            val plusIndex = triggerName.indexOf("+")
            if (plusIndex != -1) {
                modifierName = triggerName.substring(0, plusIndex)
                triggerName = triggerName.substring(plusIndex + 1)
            }

            // if triggerName was CTRL+A, we end up with:
            // triggerName = A
            // modifierName = CTRL

            try {
                val key = KeyCode.getKeyCode(triggerName)
                rebind(action, key, InputModifier.valueOf(modifierName))
            } catch (ignored: Exception) {
                try {
                    val btn = MouseTrigger.buttonFromString(triggerName)
                    rebind(action, btn, InputModifier.valueOf(modifierName))
                } catch (e: Exception) {
                    log.warning("Undefined trigger name: " + triggerName)
                    throw IllegalArgumentException("Corrupt or incompatible user profile: " + e.message)
                }
            }
        }
    }

Legacy profile code

    //    private fun createProfilesDirTask(): IOTask<*> {
//        log.debug("Creating profiles dir")
//
//        return fs.createDirectoryTask(PROFILES_DIR)
//                .then { fs.writeDataTask(Collections.singletonList("This directory contains user profiles."), PROFILES_DIR + "Readme.txt") }
//                .onFailure {
//                    log.warning("Failed to create profiles dir: $it")
//                    Thread.getDefaultUncaughtExceptionHandler().uncaughtException(Thread.currentThread(), it)
//                }
//    }
//    fun createProfileTask(profileName: String): IOTask<Void> {
//        log.debug("Creating profile: $profileName")
//        return fs.createDirectoryTask("./$PROFILES_DIR$profileName")
//    }
//
//    /**
//     * A task that reads all profile names.
//     */
//    fun readProfileNamesTask(): IOTask<List<String>> {
//        log.debug("Reading profile names")
//        return fs.loadDirectoryNamesTask("./$PROFILES_DIR", recursive = false)
//    }
//
//    /**
//     * Delete profile.
//     *
//     * @param profileName name of profile to delete
//     */
//    fun deleteProfileTask(profileName: String): IOTask<Void> {
//        log.debug("Deleting profile: $profileName")
//        return fs.deleteDirectoryTask("./$PROFILES_DIR$profileName")
//    }

//
//    fun `Delete profile`() {
//        assertTrue(Files.exists(Paths.get("profiles/TestProfileName")))
//
//        saveLoadService.deleteProfileTask("TestProfileName").run()
//
//        assertFalse(Files.exists(Paths.get("profiles/TestProfileName")))
//    }

[AlmasB]

Double check this is needed:

Bundle fxglServicesBundle = new Bundle("FXGLServices");
fxglServicesBundle.put("globalSoundVolume", 0.5);
fxglServicesBundle.put("fullscreen", false);
fxglServicesBundle.put("globalMusicVolume", 0.5);