v1.1.0 to fix multiple-definitions linker error

### Releases v1.1.0

1. Fix `multiple-definitions` linker error.
2. Add example [multiFileProject](examples/multiFileProject) to demo for multiple-file project.
3. Update `Packages' Patches`

Author: khoih-prog

README.md

@@ -178,7 +178,7 @@ To use LAN8720 on some STM32 boards
 - **Discovery (DISCO_F746NG)**
 - **STM32F4 boards (BLACK_F407VE, BLACK_F407VG, BLACK_F407ZE, BLACK_F407ZG, BLACK_F407VE_Mini, DIYMORE_F407VGT, FK407M1)**
 
-you have to copy the files [stm32f4xx_hal_conf_default.h](Packages_Patches/STM32/hardware/stm32/x.yy.zz/system/STM32F4xx) and [stm32f7xx_hal_conf_default.h](Packages_Patches/STM32/hardware/stm32/x.yy.zz/system/STM32F7xx) into STM32 stm32 directory (~/.arduino15/packages/STM32/hardware/stm32/x.yy.zz/system) to overwrite the old files.
+you have to copy the files [stm32f4xx_hal_conf_default.h](Packages_Patches/STM32/hardware/stm32/2.2.0/system/STM32F4xx) and [stm32f7xx_hal_conf_default.h](Packages_Patches/STM32/hardware/stm32/2.2.0/system/STM32F7xx) into STM32 stm32 directory (~/.arduino15/packages/STM32/hardware/stm32/x.yy.zz/system) to overwrite the old files.
 
 Supposing the STM32 stm32 core version is 2.2.0. These files must be copied into the directory: