A non-thread-safe circular buffer struct.
It doesn't overwrite elements, which not have been read yet. So the callside should take care
of consuming elements on time (by calling read() or readAll()).
When writing it returns a Bool indicating if element(s) have been written.
Build with swift build.
Run tests with swift test.
let circularBuffer = CircularBuffer<Float>(repeating: 0, count: 5)
var hasWritten: Bool = false
hasWritten = circularBuffer.write(0.1)
// hasWritten == true
hasWritten = circularBuffer.write([0.2, 0.3, 0.4, 0.5])
// hasWritten == true
hasWritten = circularBuffer.write(0.6)
// hasWritten == false
let element = circularBuffer.read()
// element == 0.1
let elements = circularBuffer.readAll()
// elements == [0.2, 0.3, 0.4, 0.5]