Modifying examples and moving from other directory;

"ifba" ->>> "Examples"

Signed-off-by: willmendesneto <willmendesneto@gmail.com>
Inserting new file with substring example.
It's very important for print informations in matrix.

Signed-off-by: willmendesneto <willmendesneto@gmail.com>
A example using ultra sonic sensor for print numeric
informations in matrix LED 8x8.

Signed-off-by: willmendesneto <willmendesneto@gmail.com>