Add WiringPi package

[MikaXII]

Please make sure your PR is ready to be merged !

• You added the changes in CHANGELOG.md
• You choose the right repository branch to make the PR
• You described the PR as below

---

I think all is good, minor improvment for mk file but it work.

ls -l output/target/bin/gpio
-rwxr-xr-x 1 mika mika 72188  2 mars  13:17 output/target/bin/gpio
file output/target/bin/gpio                      
output/target/bin/gpio: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynam
ically linked, interpreter /lib/ld-linux-armhf.so.3, for GNU/Linux 2.6.32, not stripp
ed                

ls -l output/target/usr/lib/libwiringPi*         
lrwxrwxrwx 1 mika mika    22  2 mars  13:26 output/target/usr/lib/libwiringPiDev.so -
> libwiringPiDev.so.2.32                                                             
-rwxr-xr-x 1 mika mika 28280  2 mars  13:26 output/target/usr/lib/libwiringPiDev.so.2
.32                                                                                  
lrwxrwxrwx 1 mika mika    19  2 mars  13:26 output/target/usr/lib/libwiringPi.so -> l
ibwiringPi.so.2.32                                                                   
-rwxr-xr-x 1 mika mika 56856  2 mars  13:26 output/target/usr/lib/libwiringPi.so.2.32

file output/target/usr/lib/libwiringPi*          
output/target/usr/lib/libwiringPiDev.so:      symbolic link to libwiringPiDev.so.2.32
output/target/usr/lib/libwiringPiDev.so.2.32: ELF 32-bit LSB shared object, ARM, EABI
5 version 1 (SYSV), dynamically linked, not stripped                                 
output/target/usr/lib/libwiringPi.so:         symbolic link to libwiringPi.so.2.32   
output/target/usr/lib/libwiringPi.so.2.32:    ELF 32-bit LSB shared object, ARM, EABI
5 version 1 (SYSV), dynamically linked, not stripped