Heltec ESP32 Arduino Library Release 1.0.7

• Update ESP32 + LoRa series factory test;
• Update LoRa basic test library.

Heltec ESP32 Arduino Library Release 1.0.6

• Update WiFi LoRa 32 factory test example bug;
• Update LoRa library.

Heltec ESP32 Arduino Library Release 1.0.5

• Add Wireless Stick Lite borad defintion;
• Add Wireless Stick Lite example;
• Fix LoRa library bugs.

Heltec ESP32 Arduino Library Release 1.0.4

• Fix battery detect example;
• Fix Seriel 2 example.

Heltec ESP32 Arduino Library Release 1.0.3

• Fix LoRa library bugs;
• Update readme.md.

Heltec ESP32 Arduino Library Release 1.0.2

• Ready to use;
• Moved examples from development environment to this project;
• Boards options had been defined via macro;
• Bug fix;
• Stable update.