compile-time import

[alexiss]

@Araq thank you for fast reply! After changing `--os:standalone` to `--os:any` 
I have following error:
    
    
    Error: Port memory manager to your platform
    
    
    Run

Not very informative for me. Here is my `nim.cfg`
    
    
    define: "EmbedTarget=stm32f334r8t6"
    
    arm.any.gcc.exe="arm-none-eabi-gcc"
    arm.any.gcc.linkerexe="arm-none-eabi-gcc"
    
    --passC:"-O3 -g -mtune=cortex-m4 -fno-common -ffunction-sections 
-fdata-sections -std=c11"
    --noMain
    --noLinking
    --os:any
    --cpu:arm
    --deadCodeElim:on
    --parallelBuild:"1"
    
    
    Run