Change naming convention

[butuzov]

Current State

• PatternNameWithDone(done, ...)
• PatternNameWithContext(ctx, ...)

~~Maybe Option 1 - generic~~

Impossible because we can't union interfaces and types

• ~~PatternName(Cancelable, ...) (chan T, error) where Cancelable is context.Context | ~chan struct{}~~
• ~~MustPatternName(Cancelable, ...) chan T where Cancelable is context.Context | ~chan struct{}~~

Maybe Option 2 - for a sake of short naming.

• PatternNameWithDone(done ...) (chan T, error)
• PatternName(ctx ...) (chan T, error)
• MustPatternNameWithDone(done, ...) chan T
• MustPatternName(ctx, ...) chan T

Maybe Option 3 - for a sake of short naming ( pattern WithContext).

• PatternName(done ...) (chan T, error)
• PatternNameWithContext(ctx ...) (chan T, error)
• MustPatternName(done, ...) chan T
• MustPatternNameWithContext(ctx, ...) chan T