Stem Cells Market Size, Share & Industry Analysis, By Cell Type (Embryonic Stem Cells (ESCs), Mesenchymal Stem Cells (MSCs), Adult Stem Cells, and Induced Pluripotent Stem Cells (iPSCs)), By Application (Research and Clinical), By End-user (Pharmaceutical & Biotechnology Companies, Academic & Research Institutes, and Others), and Regional Forecast, 2026-2034