Changed all file names to .r instead of .R
Add .r files to repo
Fixed bug related to formatting of variable output
Added code to set column width for variables to a minimum of 6
More work to fix output formatting for files A and T
Another fix for file A and T output
More work to fix file A and T output formatting
Added NA check in conversion from POSIXt to integer for date variables
Changes to overhaul reading weather files and slight update to soil PTFs
Rewrite of functions for reading/writing DSSAT parameter files
  * Added functions to provide parameter formats <MODEL>.fmt()
  * Added function for writing by file tier(beginning with header '@')
  * Simplified code for reading/writing based on reading/writing by tier
Bugfix
Added parameter G#WTS to cropsim.fmt()
Bugfix
Bugfix
bugfix
bugfix
bugfix
Added variables to fmt.default() for reading AgMERRA format weather files
Fixed bug to allow read.section() to read NOTES section of file X properly