Describe the bug
convert to PascalCase
"first_1min_candle_date" = "First1minCandleDate"
but google protobug convert as
"First1MinCandleDate"
with upper "M"

To Reproduce
Steps to reproduce the behavior:

1. Call function '...'
   Name := "first_1min_candle_date"
   str := stringy.New(Name)
   Otvet := str.PascalCase("?", "").Get()
2. Pass value '...'
3. See error

Expected behavior
A clear and concise description of what you expected to happen.

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Additional context
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