[tests] Add Syriac Alaph shaping test cases

test/shaping/texts/in-tree/shaper-arabic/script-syriac/misc/MANIFEST

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+alaph.txt

test/shaping/texts/in-tree/shaper-arabic/script-syriac/misc/alaph.txt

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+ ܐ
+ ܐܘ
+ ܐܪ
+ ܐܖ
+ ܐܕ
+ ܐܯ
+ ܐܒ
+ܘܐ
+ܘܐܘ
+ܘܐܪ
+ܘܐܖ
+ܘܐܕ
+ܘܐܯ
+ܘܐܒ
+ܪܐ
+ܪܐܘ
+ܪܐܪ
+ܪܐܖ
+ܪܐܕ
+ܪܐܯ
+ܪܐܒ
+ܖܐ
+ܖܐܘ
+ܖܐܪ
+ܖܐܖ
+ܖܐܕ
+ܖܐܯ
+ܖܐܒ
+ܕܐ
+ܕܐܘ
+ܕܐܪ
+ܕܐܖ
+ܕܐܕ
+ܕܐܯ
+ܕܐܒ
+ܯܐ
+ܯܐܘ
+ܯܐܪ
+ܯܐܖ
+ܯܐܕ
+ܯܐܯ
+ܯܐܒ
+ܒܐ
+ܒܐܘ
+ܒܐܪ
+ܒܐܖ
+ܒܐܕ
+ܒܐܯ
+ܒܐܒ
+ ܐܐ
+ ܐܐܘ
+ ܐܐܪ
+ ܐܐܖ
+ ܐܐܕ
+ ܐܐܯ
+ ܐܐܒ
+ܘܐܐ
+ܘܐܐܘ
+ܘܐܐܪ
+ܘܐܐܖ
+ܘܐܐܕ
+ܘܐܐܯ
+ܘܐܐܒ
+ܪܐܐ
+ܪܐܐܘ
+ܪܐܐܪ
+ܪܐܐܖ
+ܪܐܐܕ
+ܪܐܐܯ
+ܪܐܐܒ
+ܖܐܐ
+ܖܐܐܘ
+ܖܐܐܪ
+ܖܐܐܖ
+ܖܐܐܕ
+ܖܐܐܯ
+ܖܐܐܒ
+ܕܐܐ
+ܕܐܐܘ
+ܕܐܐܪ
+ܕܐܐܖ
+ܕܐܐܕ
+ܕܐܐܯ
+ܕܐܐܒ
+ܯܐܐ
+ܯܐܐܘ
+ܯܐܐܪ
+ܯܐܐܖ
+ܯܐܐܕ
+ܯܐܐܯ
+ܯܐܐܒ
+ܒܐܐ
+ܒܐܐܘ
+ܒܐܐܪ
+ܒܐܐܖ
+ܒܐܐܕ
+ܒܐܐܯ
+ܒܐܐܒ