Minor improvements and new activities

What's Changed

• Add InsertRange for inserting rows and columns to excel by @skadefro in #686
• Add password support for ReadPDF by @skadefro in #683
• Improve image.Get element speed by @skadefro in #679
• Add clear limit button by @skadefro in #682
• remove debug messages by @skadefro in #680
• Improve window matching speed for get element by @skadefro in #681
• Improve Image Get Element speed by @skadefro in #684
• Fix leaking handle issue in overlay window by @skadefro in #685

Full Changelog: 1.4.37...1.4.38