feat(weave_query): Add string op to parse number with thousands and decimal separators

[nicholaspun-wandb]

Description

• Handles WB-16442
• Creates a new string op that will parse numbers with a thousands separator.

Testing

Added unit tests

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Preview this PR with FeatureBee: https://beta.wandb.ai/?betaVersion=91f08ae6b0bbee60e04587502aad0c11da88c57d

[domphan-wandb]

I think this solution is pretty sweet especially since you removed the locale calls. Do you think it would feasible to add a second optional argument to represent the decimal symbol if needed? For example, I think 1.234.567,14 is valid in many European countries.