samples: add new sample for analytics data api

[anweshan]

[snippet-bot[bot]]

Here is the summary of changes.

You are about to add 4 region tags.

• analyticsdata/run_report.php:34, tag analyticsdata_run_report
• analyticsdata/run_report.php:51, tag analyticsdata_initialize
• analyticsdata/run_report.php:87, tag analyticsdata_print_run_report_response_header
• analyticsdata/run_report.php:102, tag analyticsdata_print_run_report_response_rows

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