Adding Zlib (Miniz) deflate option

This will enhance the BLE payload receive time.
renderDeflatedJson now does:

mallocs a tinfl_decompressor on the heap,
Runs the same decompression loop that tinfl_decompress_mem_to_heap would have run internally (growing output buffer on the heap with realloc),
Calls free on the decompressor state when done.

Ble receive example and new drawPixel support

• Adds drawPixel support element type="p" (to keep JSON short)
• Adds a full working BLE gatt client example, just use draw.fasani.de to send the canvas drawing using Chrome (remember to enable Web experimental features)

1.0 alpha release

First version that supports also G5 compressed images.

Might still have some unknown bugs but all the things I tested work like expected.