init block for max17048

[mariopesch]

closes #477

[github-actions]

Tests

Test Name	Status	Flaky	Duration
Blockly Editor Page Tests [Blockly] visits the editor page	✅		1.0s
Blockly Editor Page Tests [Blockly] visits the tutorial page	✅		188ms
Blockly Editor Page Tests [Blockly] visits the gallery page	✅		144ms
Blockly Editor Page Tests [Blockly] visits the faq page	✅		137ms
Blockly Editor Page Tests [Blockly] visits the settings page	✅		138ms
Blockly Editor Page Tests [Blockly] visits the login page	✅		137ms
Blockly Editor Page Tests [Blockly] navigates to tutorial and back	✅		5.5s
Blockly Editor Page Tests [Blockly] selects senseBox ESP	✅		878ms
Blockly Editor Page Tests [Blockly] selects senseBox MCU	✅		785ms
Blockly Editor Page Tests [Blockly] selects senseBox Mini	✅		801ms
Blockly Editor Page Tests [Blockly] changes the language in settings and verifies via headline	✅		1.1s
Blockly Editor Page Tests [Blockly] changes to tablet mode and compiles code for esp32	✅		7.4s
Blockly Editor Page Tests [Blockly] changes to tablet mode and compiles code for MCU	✅		4.4s
Blockly Editor Page Tests [Blockly] compiles code	✅		7.3s
Code Editor Page Tests [CodeEditor] visits the code editor page	✅		1.6s
Code Editor Page Tests [CodeEditor] selects senseBox ESP	✅		557ms
Code Editor Page Tests [CodeEditor] compiles code	✅		673ms
Code Editor Page Tests [CodeEditor] opens reset dialog	✅		769ms
Code Editor Page Tests [CodeEditor] fetches libraries	✅		1.7s

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