Global Diamond Core Drilling Market Size, Share, And Enhanced Productivity By Operating Type (Hand Held, Rig Operated), By Drilling Technique (Stitch Drilling, Underwater Diamond Drilling, Surface Drilling, Underground Drilling), By End Use (Mining, Construction, Oil and Gas, Infrastructure Development, Geothermal Energy, Others), By Region and Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends, and Forecast 2025-2034