Evas_GL: Re-apply below run-time shader patches along with 'AFILL' flag handling fix

Evas_GL: Re-apply below run-time shader patches along with 'AFILL' flag handling fix

'run-time generation and load of shaders' feature (commit e7ae3b84795a8988caa6478e7e20aa4cd7a9545e)
Fix linking to 'context_restore_set'' patch for wayland_egl engine (commit 4e43d2c3a82f6471ca1f3e4028f2115d47f91cea)
Fix aarch64 build error in 'run-time generation and load of shaders' patch (commit 61c9991eef4ece13e45c567905c48d3e9a829a09)
Fix 'run-time shader' patch by changing position 'extension GL_OES_EGL_image_external:require' (commit 45b7bf098bea3d1d5bf468387239cfa0dd7c1058)

AFILL Fix: AFILL flag is SET only for external images with No alpha

Change-Id: I175d820c909db1387324c9d98dd10d6c3341d397