bootloader: Add animated ticker for VOL- wait

Now an animated line is drawn while bootlogo wait is active.
This will remind user to press VOL- if needed and also give visible feedback.

A new config key was added to disable it for custom bootlogos. Set `noticker=1` in `[config]` section.
It always show for default hekate one.

For now now there's no GUI option for it.

README.md

@@ -81,6 +81,7 @@ There are four possible type of entries. "**[ ]**": Boot entry, "**{ }**": Capti
 | autoboot=0         | 0: Disable, #: Boot entry number to auto boot.             |
 | autoboot_list=0    | 0: Read `autoboot` boot entry from hekate_ipl.ini, 1: Read from ini folder (ini files are ASCII ordered). |
 | bootwait=3         | 0: Disable (It also disables bootlogo. Having **VOL-** pressed since injection goes to menu.), #: Time to wait for **VOL-** to enter menu. Max: 20s. |
+| noticker=0         | 0: Animated line is drawn during custom bootlogo, signifying time left to skip to menu. 1: Disable. |
 | autohosoff=1       | 0: Disable, 1: If woke up from HOS via an RTC alarm, shows logo, then powers off completely, 2: No logo, immediately powers off.|
 | autonogc=1         | 0: Disable, 1: Automatically applies nogc patch if unburnt fuses found and a >= 4.0.0 HOS is booted. |
 | bootprotect=0      | 0: Disable, 1: Protect bootloader folder from being corrupted by disallowing reading or editing in HOS. |