v2.0.2 - Fix view/pure function coverage

🐛 Bug Fix

Fixed a critical bug where contracts containing only view/pure functions would incorrectly show 0% coverage.

What was wrong

• By default, echidna-coverage filters out view/pure functions to focus on state-changing functions
• Contracts like QuoterV1 that only contain view functions would have all functions filtered out
• This resulted in showing 0 total functions and 0% coverage, even when the contract was fully covered

What's fixed

• Automatically includes all functions when filtering would result in zero functions
• Contracts with only view/pure functions now show their actual coverage metrics
• Example: QuoterV1 now correctly shows 97.22% coverage instead of 0%

Technical Details

• Modified parseFunctions() in src/parsing/index.ts
• Added fallback logic when filteredFunctions.length === 0 && functions.length > 0
• No breaking changes - all existing functionality preserved

Full Changelog: v2.0.1...v2.0.2