Long Range Radio Backpacks

Created basic Long Range Radio Backpacks using the RHS backpacks and updating configurations of the ANPRC 67 and ANPRC 152A for use during semi-milsim and milsim operations.

The frequencies have been separated between the Short Range and Long Range Radios 

Details:
__Short Range - SR (Squad Radios)__
ANPRC68 (AR) & ANPRC152A(RHS):
- Channel 1:
  - Channel frequency : 32 MHz
  - Min tunable frequency: 30 MHz
  - Max tunable frequency: 52 MHz
  - Transmitting range: 2 KMs
  - Frequency resolution: 200 (goes up/down in increments of 2MHz)

- Channel 2:
  - Channel frequency : 48 MHz
  - Min tunable frequency: 30 MHz
  - Max tunable frequency: 52 MHz
  - Transmitting range: 2 KMs
  - Frequency resolution: 200 (goes up/down in increments of 2MHz)

__Long Range - LR (Radio Backpacks)__
611 Radio Backpack - Grey/Black/MC/OD/COY
- Channel 1:
  - Channel frequency : 53 MHz
  - Min tunable frequency: 53 MHz
  - Max tunable frequency: 76 MHz
  - Transmitting range: 20 KMs
  - Frequency resolution: 200 (goes up/down in increments of 2MHz)

- Channel 2:
  - Channel frequency : 54 MHz
  - Min tunable frequency: 53 MHz
  - Max tunable frequency: 76 MHz
  - Transmitting range: 20 KMs
  - Frequency resolution: 200 (goes up/down in increments of 2MHz)

__Use the radios the same way you use the AR radios.__
- Make sure that your SR (ANPRC68/152A) channel is set to channel 1 (CAPS by default for broadcasting (PC))
- You can listen in on a 2nd SR (ANPRC68/152A) freq by setting channel 2 to whatever freq you want.  To broadcast you would need to select channel 2 in your radial menu and then press CAPS to broadcast.
- Ensure your radio backpack channel you want to broadcast is set to channel 2 (LCNTRL+CAPS by default for broadcasting (PC))
- You can listen in on a 2nd Long Range (Radio Backpack) freq by setting channel 2 to whatever freq you want.  To broadcast you would need to select channel 2 in your radial menu.

__WIP__
- Currently only available for US Faction
- Physical antenna
- Storage

Special thanks to RHS for their amazing support to the Arma community over the years.

RHS: https://docs.rhsmods.org/rhs-status-quo-user-documentation/arma-reforger/rhs-status-quo/eula