add ece 1st semester physics minor1,minor2 and major 2019 paper

[keshavg2]

the name of pdf would be in this format
ECS1M12018Phy.pdf
here
EC- Electronic Communication
S1 - semester 1
M1 - minor 1
2018 - year
phy - subject

[knakul853]

@17bcs029 can you give description of name format of pdf