move to binary esptool. Run get.py/get.exe to get it!

With this step we remove all dependencies, but git. Mac and Linux come with Python by default, so they will keep using get.py to update the toolchain and support binaries. Windows users have an "All point and click" installation option that requires only git and Arduino to be downloaded. Fingers crossed :)

Author: me-no-dev

.gitignore

@@ -1,3 +1,5 @@
 
 tools/xtensa-esp32-elf
 tools/dist
+tools/esptool
+tools/esptool.exe

README.md

@@ -30,9 +30,6 @@ Most of the framework is implemented. Most noticable is the missing analogWrite.
 - Open Terminal and execute the following command (copy->paste and hit enter):
 
  ```bash
- curl -o get-pip.py https://bootstrap.pypa.io/get-pip.py && \
- sudo python get-pip.py && \
- sudo pip install pyserial && \
  mkdir -p ~/Documents/Arduino/hardware/espressif && \
  cd ~/Documents/Arduino/hardware/espressif && \
  git clone https://github.com/espressif/arduino-esp32.git esp32 && \
@@ -48,9 +45,6 @@ Most of the framework is implemented. Most noticable is the missing analogWrite.
  ```bash
  sudo usermod -a -G dialout $USER && \
  sudo apt-get install git && \
- wget https://bootstrap.pypa.io/get-pip.py && \
- sudo python get-pip.py && \
- sudo pip install pyserial && \
  mkdir -p ~/Arduino/hardware/espressif && \
  cd ~/Arduino/hardware/espressif && \
  git clone https://github.com/espressif/arduino-esp32.git esp32 && \