Enhancement: Merged all offline functions in one module.

[tannuiscoding]

close #185

it also closes #187

changes I made

• added offline.py with all the offline usable functions
• reduced redundancy by adding password.py
• improved clip() and show() functions by reducing the same code

[tannuiscoding]

looks nice to me

[iamyaash]

@tannuiscoding now that we have this combined into a single file, and the test cases are failing.

it was written for separate files!

[iamyaash]

don't delete the old files (for now)
let's keep it

we'll raise the "test case" issue for that, then we'll remove it from the project!

[iamyaash]

also make separate PRs!
for each issue that you were assigned on

it's better if you close this PR and make a new one!

[jindalpriyanshu101]

also make separate PRs! for each issue that you were assigned on

it's better if you close this PR and make a new one!

@this-is-yaash Simply merge this PR as level-2 as it solves two level1 issues. It'll save some time.