Change stroke and fill color to int in PdfPathPageObject

- Add render mode parameter and getters and setters

Bug: 396593999
Test: atest CtsPdfModuleTestCases
Flag: android.graphics.pdf.flags.enable_edit_pdf_page_objects
Change-Id: I09ea221fc2b431ffe9a4c4268881ccfa550ed55a
2 files changed