Added node to work with nazarijtipusak080/buffer1@0.0.1 library

Contains nodes of the awgrover/buffer1@1.0.0 library with fixes for issues that caused it not to work. Also added buffer shift nodes, fill node and convert buffer content to string node.

Contains nodes for creating arrays from bits and working with them. Creates a four-byte (20-byte) bit array with free access to the nth bit in the nth byte.

This is a simple low-frequency PWM-write made from nodes of the standard library. I use it for ESP32 because the standard pwm-write node doesn't work. The effective frequency is 100-200 Hz. Duty cycle varies from 16...83%. Also accepts discrete 0s and 1s. I checked the result of the node's operation with an oscilloscope.

Accumulate characters in string and read characters from string. It is possible to store "namber" or "byte" in a string as a stream of characters. And from this string, read the characters indicated by the index. Characters will be displayed in the form of "number" or "byte".

Contains the nodes of my project: ESR meter and Capacitance meter

Contains nodes of items and values ​​for creating a menu when working with displays, there is a sample of creating "my-menu", and based on it, an example of using a menu in a real project is given. Example and Example2 tested on "arduino uno":).