Adding beginner projects

[laisfrigerio]

• [x] Bin2Dec
• [x] Border Radius Previewer
• [x] Calculator
• [x] Christmas Lights
• [x] Cause Effect App
• [x] Color Cycle
• [x] Countdown Timer
• [x] CSV2JSON App
• [x] Dollars to Cents
• [x] Dynamic CSS Variables
• [x] First DB App
• [x] Flip Image
• [x] GitHub Status
• [x] Hello
• [x] IOT Mailbox Simulator
• [x] JS Input Validation
• [x] JSON2CSV App
• [x] Key Value
• [x] Lorem Ipsum
• [x] Notes App
• [x] Pearson Regression
• [x] Pomodoro Clock
• [x] Product Landing Page
• [x] Quiz App
• [x] Recipe App
• [x] Random Meal
• [x] Random Number
• [x] Roman to Decimal
• [x] Slider Design
• [x] Stopwatch App
• [x] TrueOrFalse
• [x] Vigenere
• [x] Wind Chill
• [x] Word Frequency
• [x] Weather App