Write a C$++$ program that will use a function called ConvertWeight that accepts a real Value and two characters InUnits and OutUnits and then converts Value given in InUnits to the equivalent value in OutUnits and display this value. Inputs must be read from a file called data.txt$.$ Output must be displayed at the console screen $.$ The following is the conversions chart:

InUnits or OutUnits Symbol

Conversion

P $($for pints$)$

pints to liters: $1$pt $=0\mathrm{.}473167$ L

L $($for liters$)$

Q $($for quarts$)$

quarts to liters: $1$qt $=0\mathrm{.}94633$ L

G $($for gallons$)$

gallons to liters: $1$ gal $=3\mathrm{.}78541$ L