Web-Scaping PGA Tour Statistics using R

Short web-scraping code to collect PGA Tour statistics from https://www.pgatour.com/stats.html

The code requires the year and an optional stat id as list inputs.
It consists of 2 parts:

1. HTML Links Builder:
   This part consists of building the html strings used in the next step.
   It also retrieves a list of stat id which can be used for selection.
2. Web Scaping Loop:
   This is where the web-scraping magic happens!
   It loops through all the pages and spits out the data in a long format.